583:
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104:
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59:
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81:
571:
40:
368:
was transported in the 19th and 20th centuries to
England, France, the Netherlands, Poland, Sweden, Finland, and potentially other areas of northern and central Europe. These naturalized populations persist in the absence of any common cultivation by people. This jewelweed species is quite similar to
348:
It often branches extensively. The round stems are glabrous (smooth) and succulent, and semi-translucent, with swollen or darkened nodes on some plants. The leaves, which measure up to 13 cm (5 in) long and 6 cm (2.5 in) across, are alternate on the upper stems and opposite on the
340:
plant that grows 0.9–1.5 m (3–5 ft) tall and blooms from late spring to early fall. The flowers are orange (sometimes blood orange or rarely yellow) with a three-lobed corolla; one of the calyx lobes is colored similarly to the corolla and forms a hooked conical spur at the back of the
464:
The leaves appear to be silver or 'jeweled' when held underwater, which is possibly where the jewelweed name comes from. Another possible source of the name is the color and shape of the bright robin's egg-blue kernels of the green projectile seeds. Both the genus name
1027:
Motz, Vicki; Bowers, Christopher; Kneubehl, Alexander; Lendrum, Elizabeth; Young, Linda; Kinder, David (2015). "Efficacy of the saponin component of
Impatiens capensis Meerb. in preventing urushiol-induced contact dermatitis".
1063:
Motz; Bowers; Young; Kinder (2012). "The effectiveness of jewelweed, Impatiens capensis, the related cultivar I. balsamina and the component, lawsone in preventing post poison ivy exposure contact dermatitis".
441:. The effectiveness of its use to prevent the development of a rash after short-term exposure to poison ivy has been supported by peer-reviewed study, and is likely due to the plant containing
1181:
Travers, Steven E; Temeles, Ethan J; Pan, Irvin (2003). "The relationship between nectar spur curvature in jewelweed (Impatiens capensis) and pollen removal by hummingbird pollinators".
519:
are major pollinators. They remove more pollen per visit from flowers with curved nectar spurs than with perpendicular nectar spurs. But hummingbirds are not the only pollinators of
1461:
353:
to elliptic, simple, and have shallow, rounded teeth on the margins. The seed pods have five valves which coil back rapidly to eject the seeds in a process called
558:
1549:
1701:
546:
357:
or ballistochory. This reaction is where the name 'touch-me-not' comes from; in mature seed pods, dehiscence can easily be triggered with a light touch.
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have these nectar spurs. Nectar spurs are thought to have played a role in plant-pollinator coevolution. Curvature angles of nectar spurs of
892:
Zika, Peter (Sep 2006). "Impatiens ×pacifica (Balsaminaceae), a New Hybrid
Jewelweed from the Pacific Northwest Coast of North America".
1706:
1716:
1383:
1721:
1111:
398:
due to its rapid spread and tendency to outcompete native jewelweeds. It has also formed a hybrid species with the native jewelweed
476:, meaning "of the cape", is actually a misnomer, as Nicolaas Meerburgh was under the mistaken impression that it was native to the
1127:
515:
The angle of the nectar spur is very important in the pollination of the flower and in determining the most efficient pollinator.
1448:
88:
1515:
1479:
1536:
22:
312:. It is common in bottomland soils, ditches, and along creeks, often growing side by side with its less common relative,
991:
Wildflowers of Oregon: A Field Guide to Over 400 Wildflowers, Trees, and Shrubs of the Coast, Cascades, and High Desert
703:
445:. These studies also found that some individuals have a sensitivity to jewelweed which can cause a more severe rash.
654:
1627:
469:("impatience" in Latin) and common name spotted touch-me-not refer to how its seeds when ripe pop open on touch.
103:
1554:
1510:
1632:
905:
383:. No evidence exists of natural hybrids, although the habitats occupied by the two species are very similar.
1401:
1336:
1295:
1396:
1257:
371:
504:
are tubular elongations of petals and sepals of certain flowers that usually contain nectar. Flowers of
220:
1427:
763:
437:, the juice of the leaves and stems is a traditional Native American remedy for skin rashes, including
781:
631:
492:
1726:
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play an important role in pollination as well. Due to hummingbirds and bees, the pollination of
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141:
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Elemans, Marjet (2004). "Light, nutrients and the growth of herbaceous forest species".
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741:
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501:
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309:
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187:
68:
63:
913:
819:"The mechanics of explosive seed dispersal in orange jewelweed (Impatiens capensis)"
663:
NatureServe
Network Biodiversity Location Data accessed through NatureServe Explorer
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1349:
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516:
395:
301:
1326:
866:
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1229:
1316:
1280:
1077:
1041:
1013:
453:
438:
337:
1388:
1104:
The
Audubon Society Field Guide to North American Wildflowers, Eastern Region
955:
1370:
528:
434:
197:
1128:"Wildflowers of the Adirondacks: Spotted Touch-Me-Not (Impatiens capensis)"
1085:
1049:
989:
852:
39:
1645:
933:
Edible Wild Plants: A North
American Field Guide to Over 200 Natural Foods
931:
1640:
1274:
834:
177:
167:
154:
1567:
969:
Smith, Huron H. (1933). "Ethnobotany of the Forest
Potawatomi Indians".
1414:
442:
418:
379:
species native to Europe and Asia, as well as the other North
American
1440:
481:
1453:
1251:
1194:
1375:
716:
491:
327:
115:
524:
417:
The young shoots can be boiled (with two changes of water) as a
1362:
1255:
512:
are variable. This angle varies from 0 degrees to 270 degrees.
684:
Dickinson, T.; Metsger, D.; Bull, J.; Dickinson, R. (2004).
817:
Hayashi, Marika; Feilich, Kara; Ellerby, David (May 2009).
421:; eating too much is not recommended as the plant contains
906:
10.3417/1055-3177(2006)16[443:IPBANH]2.0.CO;2
971:
Bulletin of the Public Museum of the City of
Milwaukee
1264:
632:10.2305/IUCN.UK.2016-1.RLTS.T64314821A67729731.en
345:flowers, which do not require cross-pollination.
930:Elias, Thomas S.; Dykeman, Peter A. (2009) .
456:qualities have been scientifically verified.
8:
692:and McClelland and Stewart Ltd. p. 197.
21:For other plants called "touch-me-not", see
1157:(2nd ed.). Seneca Books. p. 622.
894:Novon: A Journal for Botanical Nomenclature
871:Washington State Noxious Weed Control Board
588:Leaf showing beads (jewels) just after rain
448:The stem juice has also been used to treat
349:lower stems (when present). The leaves are
1252:
341:flower. Plants may also produce non-showy
79:
57:
38:
29:
1176:
1174:
842:
686:ROM Field Guide to Wildflowers of Ontario
630:
713:Botanical Society of Britain and Ireland
1153:Strausbaugh, P.D.; Core, E. L. (1964).
800:"Know Your Natives – Spotted Jewelweed"
782:"Orange Jewelweed (Impatiens capensis)"
764:"Orange Jewelweed (Impatiens capensis)"
599:
542:
925:
923:
425:crystals. The seeds are also edible.
7:
742:"Botanical Electronic News, No. 408"
496:A carpenter bee feeding on jewelweed
1702:IUCN Red List least concern species
618:IUCN Red List of Threatened Species
1633:urn:lsid:ipni.org:names:30008241-2
665:. Arlington, Virginia: NatureServe
14:
564:Jewelweed growing on a creek side
653:NatureServe (1 September 2023).
581:
569:
557:
545:
102:
740:Ceska, Dr. A. (21 April 2009).
1102:; Olmstead, Nancy C. (1985) .
823:Journal of Experimental Botany
1:
804:Arkansas Native Plant Society
1066:Journal of Ethnopharmacology
1030:Journal of Ethnopharmacology
786:www.illinoiswildflowers.info
433:Along with other species of
1230:10.1016/j.actao.2004.05.003
1743:
1707:NatureServe secure species
1183:Canadian Journal of Botany
20:
16:Species of flowering plant
1717:Flora of Northern America
1078:10.1016/j.jep.2012.06.038
1042:10.1016/j.jep.2014.12.024
250:
243:
226:
219:
99:Scientific classification
97:
77:
55:
46:
37:
32:
1722:Plants described in 1775
1132:ADIRONDACKS FOREVER WILD
625:: e.T64314821A67729731.
394:is considered a class C
1155:Flora of West Virginia
1106:. Knopf. p. 414.
988:Fagan, Damian (2019).
607:Maiz-Tome, L. (2016).
497:
372:Impatiens noli-tangere
333:
495:
331:
768:Illinois Wildflowers
762:Hilty, John (2020).
690:Royal Ontario Museum
355:explosive dehiscence
294:spotted touch-me-not
1222:2004AcO....26..197E
1100:Niering, William A.
867:"Spotted Jewelweed"
388:State of Washington
49:Conservation status
1594:Impatiens capensis
1296:Impatiens capensis
1266:Impatiens capensis
1134:. Wild Adirondacks
873:. Washington State
835:10.1093/jxb/erp070
657:Impatiens capensis
611:Impatiens capensis
552:Leaves and flowers
533:Impatiens capensis
521:Impatiens capensis
510:Impatiens capensis
506:Impatiens capensis
498:
401:Impatiens ecornuta
392:Impatiens capensis
366:Impatiens capensis
334:
332:Flowers and leaves
308:that is native to
273:Impatiens capensis
230:Impatiens capensis
1689:
1688:
1576:Open Tree of Life
1258:Taxon identifiers
1164:978-0-89092-010-7
1005:978-1-4930-3633-2
947:978-1-4027-6715-9
478:Cape of Good Hope
472:The species name
286:spotted jewelweed
269:
268:
264:
257:
253:Impatiens biflora
92:
72:
33:Orange jewelweed
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1542:NBNSYS0000003187
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994:. Guilford, CT:
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829:(7): 2045–2046.
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772:
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715:. Archived from
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644:
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336:Jewelweed is an
314:yellow jewelweed
282:common jewelweed
278:orange jewelweed
262:
255:
232:
212:I. capensis
107:
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83:
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66:
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42:
30:
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1563:Observation.org
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1195:10.1139/b03-014
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998:. p. 227.
987:
986:
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948:
940:. p. 119.
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806:. 31 July 2015.
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1679:wfo-0000730324
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877:October 25,
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488:Pollination
324:Description
142:Angiosperms
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1696:Categories
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1602:Plant List
1454:30008241-2
1334:Calflora:
1014:1073035766
726:2014-10-17
594:References
529:bumblebees
454:fungicidal
439:poison ivy
338:herbaceous
318:I. pallida
1712:Impatiens
1402:242416691
1247:Jewelweed
1138:28 August
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467:Impatiens
460:Etymology
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429:Medicinal
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206:Species:
199:Impatiens
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1641:Tropicos
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178:Ericales
168:Asterids
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