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are leathery at the base; the lower, bidentate glume has two membranous wings in the apical half; the upper glume has a winged keel towards the apex and a 6 mm awn. The
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The
Christmas Island duck-beak is an erect, tufted grass, 250–700 mm tall, with the stems often branched and the nodes smooth. The
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The grass occurs sporadically along the northern and western coasts of the island. Habitat types include exposed
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about 3.5 mm long, with the awn of the upper lemma 15 mm long and twisted at the base.
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are 30–110 mm long, 2.5–7 mm wide and are scattered along the stem. The two bristly
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218:("birth") referring to the birth of Christ, or Christmas, after the name of the island.
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Hack. ex Rendle, in C.W.Andrews, Monograph
Christmas Island 192. 1900.
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became the valid name when a full Latin description was published.
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The grass was first recorded, though not properly described, by
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diagnosis, leaving the name still invalid under the
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355:Jansen ex Renvoize, Kew Bull. 40: 447. 1985.
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339:International Code of Botanical Nomenclature
234:are 15–50 mm long, with long and hairy
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246:spikelets 4.5 mm long and distinctly
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329:elevated it to species status, naming it
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195:, is a tropical grass in the family
658:. You can help Knowledge (XXG) by
429:Renvoize, Kew Bull. 40: 447. 1985.
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710:Endemic flora of Christmas Island
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596:urn:lsid:ipni.org:names:906415-1
377:The grass is closely related to
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348:Full nomenclatural reference:
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325:endemic to Christmas Island.
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420:Flora of Australia Online.
193:Christmas Island duck-beak
285:sand, and near stands of
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32:Scientific classification
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720:Plants described in 1985
270:Distribution and habitat
191:, commonly known as the
307:Charles William Andrews
369:Ischaemum nativitatis
450:Ischaemum nativitatis
416:Ischaemum nativitatis
353:Ischaemum nativitatis
311:Henry Nicholas Ridley
188:Ischaemum nativitatis
173:Ischaemum nativitatis
25:Ischaemum nativitatis
294:Pandanus nativitatis
715:Poales of Australia
321:Hack. ex Rendle, a
242:, and with paired,
155:I. nativitatis
359:Ischaemum foliosum
179:Jansen ex Renvoize
725:Panicoideae stubs
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565:Open Tree of Life
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288:Scaevola taccada
209:specific epithet
205:Christmas Island
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16:Species of grass
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652:Panicoideae
539:iNaturalist
379:I. foliosum
363:leiophyllum
341:. In 1985,
319:leiophyllum
315:I. foliosum
222:Description
131:Panicoideae
127:Subfamily:
101:Commelinids
75:Angiosperms
699:Categories
583:kew-420777
578:Plant List
393:References
327:Otto Stapf
705:Ischaemum
526:GrassBase
279:pinnacles
276:limestone
216:nativitas
199:. It is
149:Species:
142:Ischaemum
45:Kingdom:
609:25542603
604:Tropicos
557:906415-1
531:imp05776
459:Wikidata
301:Taxonomy
236:pedicels
117:Family:
88:Monocots
570:3955046
518:4143151
505:5823652
465:Q662305
387:Vanuatu
323:variety
256:flowers
250:. The
244:sessile
232:racemes
201:endemic
197:Poaceae
137:Genus:
121:Poaceae
107:Order:
49:Plantae
544:359806
479:108529
252:glumes
240:rachis
228:leaves
111:Poales
650:This
492:3Q3QH
381:from
361:var.
335:Latin
317:var.
283:coral
264:palea
260:lemma
248:awned
213:Latin
95:Clade
82:Clade
69:Clade
56:Clade
656:stub
591:POWO
552:IPNI
513:GBIF
474:APNI
385:and
309:and
291:and
238:and
617:WFO
500:EoL
487:CoL
313:as
203:to
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401:^
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687:e
680:t
673:v
662:.
418:.
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