341:
157:
144:
642:, noting the very different stomatal placing on the leaves; it also differs in needle number, with 3–4 per fascicle, rather than 2–3; in the cones having thinner scales; and in having a denser, more rounded crown. Further research by the French botanist Marie-Françoise Robert-Passini, the American botanists Dana K. Bailey and Frank G. Hawksworth and others, has shown that it is better treated as a distinct
352:
36:
679:
in
Mexican pinyon as a variety or even not distinguished at all, accounting for reports of "Mexican pinyon" in Arizona and New Mexico. This is despite the two frequently occurring together at the same sites with no hybridisation.
595:, which plucks the seeds out of the open cones. The jay, which uses the seeds as a major food resource, stores many of the seeds for later use; some of these stored seeds are not used and are able to grow into new trees.
698:), with which it shares the leaf structure with the stomata confined to the inner faces; it differs from the former in the smaller cones and seeds, and from the latter in fewer needles per fascicle (3–4 vs 5).
529: in) broad when closed, green at first, ripening yellow-brown when 16–18 months old, with only a small number of thin, fragile scales, typically 6-12 fertile scales. The cones open to 3–5 cm (
668:
There are slight differences between the plants in the two ranges; those in the eastern being more shrubby and with larger cones than those in the western range, and also differences in the
438:, reaching 4–10 metres (13–33 ft) tall and with a trunk diameter of up to 50 cm (20 in). The bark is grey-brown, thin and scaly at the base of the trunk. The
1072:
1112:
959:
772:
Flores‐Rentería, Lluvia; Molina‐Freaner, Francisco; Whipple, Amy V.; Gehring, Catherine A.; Domínguez, C. A. (2013). "Sexual stability in the nearly dioecious
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As Robert-Passini and Bailey & Hawksworth were working in different areas at about the same time, it was raised to species rank twice, first as
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672:
composition; they are though generally very similar and recognition of both as separate species from each other does not appear warranted.
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605:: nearly all individuals produce either male or female cones only, and trees do not appear to change their sex expression over time.
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119:
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by Robert-Passini (naming it after her husband Jean) examining specimens in the Sierra Madre
Oriental in Mexico, and then later as
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419:. It occurs at moderate to high altitudes, from 1,600–3,000 metres (5,200–9,800 ft), in cool, dry climate conditions.
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646:. Although often occurring together with Mexican pinyon, it is reproductively isolated from that by its
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The white-glaucous inner surfaces of the needles make it a very attractive small tree, suitable for
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665:
by Bailey & Hawksworth examining specimens in the northern Sierra Madre
Occidental in Arizona.
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in 1968 when comparing pinyons growing in
Arizona with those of typical Mexican pinyon (
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being a month to two months later in summer, rather than in spring, thereby preventing
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442:('needles') are in mixed fascicles of three and four, slender, 3–6 cm (
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on the scales after opening. The seeds are 9–12 mm (
474:
confined to a bright white band on the inner surfaces.
753:. Greensboro, North Carolina: National Plant Data Team
841:
824:
Pinetum.org – Photo of cones (scroll half-way down)
470: in) long, and deep green to blue-green, with
60:. Unsourced material may be challenged and removed.
710:seeds are collected in Mexico to a small extent.
8:
567: in) long, with a thick shell, a white
543:–2 in) broad when mature, holding the
829:
686:is most closely allied to Orizaba pinyon (
591: in) wing; they are dispersed by the
142:
133:
120:Learn how and when to remove this message
1073:Flora of the Southwestern United States
819:tree and foliage (scroll half-way down)
730:
751:The PLANTS Database (plants.usda.gov)
7:
1113:Flora of the Sierra Madre Occidental
975:cd81eeb2-8c30-436d-ab23-576761ddf25b
58:adding citations to reliable sources
387:. The range extends from southeast
1118:Flora of the Sierra Madre Oriental
675:Some botanists also still include
630:) in Mexico; he described it as a
25:
1014:urn:lsid:ipni.org:names:282881-2
505: in) long and 2–3 cm (
155:
34:
571:, and a vestigial 1–2 mm (
45:needs additional citations for
1128:Garden plants of North America
1:
1083:Flora of Northeastern Mexico
1078:Flora of Northwestern Mexico
360:Chiricahua National Monument
1159:
778:American Journal of Botany
481:are globose, 2–4 cm (
430:is a small to medium-size
1068:Trees of Northern America
321:
314:
152:Scientific classification
150:
141:
136:
1143:Plants described in 1978
1098:Flora of San Luis Potosí
815:Pinetum.org – Photos of
616:is a recently described
405:Sierra Madre Occidental
1133:Drought-tolerant trees
363:
348:
1123:Edible nuts and seeds
692:) and Potosi pinyon (
409:Sierra Madre Oriental
354:
343:
54:improve this article
1108:Flora of New Mexico
790:10.3732/ajb.1200068
634:of Mexican pinyon,
358:trees (center), in
1093:Flora of Zacatecas
364:
349:
27:Species of conifer
1050:
1049:
983:Open Tree of Life
835:Taxon identifiers
695:Pinus culminicola
689:Pinus orizabensis
383:group, native to
338:
337:
130:
129:
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16:(Redirected from
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1138:Dioecious plants
1103:Flora of Arizona
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677:P. johannis
636:Pinus cembroides
627:Pinus cembroides
622:Elbert L. Little
620:, discovered by
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69:"Pinus johannis"
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1088:Flora of Sonora
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873:Pinus johannis
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843:Pinus johannis
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817:Pinus johannis
810:
809:External links
807:
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784:(3): 602–612.
774:Pinus johannis
764:
745:Pinus johannis
729:
728:
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684:Pinus johannis
663:Pinus discolor
659:Pinus johannis
614:Pinus johannis
610:
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599:Pinus johannis
428:Pinus johannis
424:
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391:and southwest
368:Pinus johannis
356:Pinus johannis
345:Pinus johannis
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137:Johann's pine
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18:Pinus discolor
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776:(Pinaceae)".
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652:hybridisation
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397:United States
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385:North America
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373:Johann's pine
370:
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316:Binomial name
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182:Tracheophytes
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110:February 2017
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71: –
70:
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65:Find sources:
59:
55:
49:
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43:This article
41:
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32:
31:
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755:. Retrieved
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411:to southern
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285:Subsection:
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195:Gymnospermae
188:
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107:
97:
90:
83:
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52:Please help
47:verification
44:
921:iNaturalist
867:Wikispecies
706:The edible
648:pollination
618:pinyon pine
593:Mexican jay
423:Description
399:, south in
381:pinyon pine
332:M.-F.Robert
1057:Categories
739:USDA, NRCS
725:References
717:and large
601:is nearly
403:along the
393:New Mexico
294:Cembroides
253:Subgenus:
201:Division:
80:newspapers
757:4 October
603:dioecious
569:endosperm
413:Zacatecas
362:, Arizona
301:Species:
292:subsect.
269:Section:
215:Pinopsida
205:Pinophyta
165:Kingdom:
1027:24901797
1022:Tropicos
939:282881-2
858:Q3506525
852:Wikidata
798:23445824
741:(n.d.).
708:pine nut
407:and the
235:Pinaceae
231:Family:
900:5686559
719:gardens
644:species
640:bicolor
632:variety
609:History
586:⁄
576:⁄
562:⁄
552:⁄
538:⁄
524:⁄
510:⁄
500:⁄
486:⁄
472:stomata
465:⁄
451:⁄
389:Arizona
379:in the
375:, is a
347:foliage
262:Strobus
241:Genus:
225:Pinales
221:Order:
211:Class:
169:Plantae
94:scholar
996:PLANTS
988:212475
972:NZOR:
952:822607
926:207467
913:467768
796:
440:leaves
401:Mexico
371:, the
278:Parrya
260:subg.
96:
89:
82:
75:
67:
1063:Pinus
965:71635
887:PIUJO
715:parks
670:resin
638:var.
545:seeds
479:cones
436:shrub
276:sect.
246:Pinus
189:Clade
176:Clade
101:JSTOR
87:books
1009:POWO
1001:PIJO
960:NCBI
947:ITIS
934:IPNI
908:GRIN
895:GBIF
882:EPPO
794:PMID
759:2015
702:Uses
477:The
432:tree
415:and
377:pine
73:news
1035:WFO
786:doi
782:100
274:P.
56:by
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290:P.
258:P.
191::
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98:·
91:·
84:·
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20:)
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