View source for Digitaria ciliaris

{{Treatment/ID
|accepted_name=Digitaria ciliaris
|accepted_authority=(Retz.) Koeler
|publications=
|common_names=Southern crabgrass
|basionyms=
|synonyms=
|hierarchy=Poaceae;Poaceae subfam. Panicoideae;Poaceae tribe Paniceae;Digitaria;Digitaria ciliaris
|hierarchy_nav=<div class="higher-taxa"><div class="higher-taxon"><small>family</small>[[Poaceae]]</div><div class="higher-taxon"><small>subfamily</small>[[Poaceae subfam. Panicoideae]]</div><div class="higher-taxon"><small>tribe</small>[[Poaceae tribe Paniceae]]</div><div class="higher-taxon"><small>genus</small>[[Digitaria]]</div><div class="higher-taxon"><small>species</small>[[Digitaria ciliaris]]</div></div>
|volume=Volume 25
|mention_page=
|treatment_page=page 382
}}<!--

--><span class="statement" id="st-undefined" data-properties=""><b>Plants </b>annual or of indefinite duration. <b>Culms</b> 10-100 cm long, erect portion 30-60 cm, long-decumbent, rooting and branching at the decumbent nodes, sparingly branched or unbranched from the upper nodes; nodes 2-5, glabrous. <b>Sheaths</b> with papillose-based hairs; ligules 2-3.5 mm, erose; blades 1.5-14.4(18.9) cm long, 3-9 mm wide, flat, glabrous, a few scattered papillose-based hairs at the base of the adaxial surfaces (occasionally over the whole adaxial surface), usually also scabrous on both surfaces. <b>Panicles</b> with 2-10 spikelike primary branches, these digitate or in 1-3 whorls on rachises to 2 cm; lowest panicle nodes with hairs more than 0.4 mm; primary branches 3-24 cm long, 0.6-1.2(2) mm wide, glabrous or with less than 1 mm hairs, axes wing-margined, wings at least 1/2 as wide as the midribs, lower and middle portions of the branches bearing spikelets in unequally pedicellate pairs; secondary branches absent; shorter pedicels 0.5-1 mm; longer pedicels 1.5-4 mm. <b>Spikelets</b> (2.7)2.8-4.1 mm long, homomorphic. <b>Lower</b> glumes 0.2-0.8 mm, acute; upper glumes (1.2)1.5-2.7 mm, about 2/3 to almost as long as the spikelet, 3-veined, margins and apices pilose; lower lemmas 2.7-4.1 mm, 7-veined, veins unequally spaced, outer 3 veins crowded together near each margin, well-separated from the midvein, usually smooth, occasionally the lateral veins scabridulous on the distal 1/3 margins and regions between the 2 inner lateral veins hairy, hairs 0.5-1 mm (rarely glabrous), sometimes also with glassy yellow hairs between the 2 inner lateral veins, these more common on the upper spikelets; upper lemmas 2.5-4 mm, glabrous, yellow, tan, or gray when immature, becoming brown, often purple-tinged (occasionally completely purple) at maturity; anthers 0.6-1 mm. <b>2n</b> = 54.</span><!--

-->{{Treatment/Body
|distribution=Conn.;N.J.;N.Y.;Del.;Pacific Islands (Hawaii);Fla.;Puerto Rico;N.Mex.;Tex.;La.;Tenn.;Pa.;Miss.;N.C.;Va.;Md.;Virgin Islands;Calif.;Ala.;Ark.;Ill.;Ga.;Ind.;Iowa;Ariz.;Kans.;Nebr.;Okla.;Mass.;Ohio;Utah;Mo.;S.C.;Ky.
|discussion=<p>Digitaria ciliaris is a weedy species, found in open, disturbed areas in most warm-temperate to tropical regions, primarily in the eastern United States. It is particularly abundant in the Southeast. So far as is known, the two varieties distinguished in the following key do not differ in any other characters. They are recognized here pending further study.</p>
|tables=
|references=
}}<!--

--><div class="treatment-key">
==Key==
<div class="treatment-key-group">
  
{| class="wikitable fna-keytable"
|-id=key-0-1
|1
|Lower lemmas without glassy yellow hairs
|[[Digitaria ciliaris var. ciliaris|Digitaria ciliaris var. ciliaris]]
|-id=key-0-1
|1
|Lower lemmas with glassy yellow hairs
|[[Digitaria ciliaris var. chrysoblephara|Digitaria ciliaris var. chrysoblephara]]
|}
</div></div><!--

-->{{#Taxon:
name=Digitaria ciliaris
|author=
|authority=(Retz.) Koeler
|rank=species
|parent rank=genus
|synonyms=
|basionyms=
|family=Poaceae
|illustrator=Linda A. Vorobik and Hana Pazdírková
|distribution=Conn.;N.J.;N.Y.;Del.;Pacific Islands (Hawaii);Fla.;Puerto Rico;N.Mex.;Tex.;La.;Tenn.;Pa.;Miss.;N.C.;Va.;Md.;Virgin Islands;Calif.;Ala.;Ark.;Ill.;Ga.;Ind.;Iowa;Ariz.;Kans.;Nebr.;Okla.;Mass.;Ohio;Utah;Mo.;S.C.;Ky.
|reference=None
|publication title=
|publication year=
|special status=
|source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse_grained_fna_xml/V25/V25_1088.xml
|subfamily=Poaceae subfam. Panicoideae
|tribe=Poaceae tribe Paniceae
|genus=Digitaria
|species=Digitaria ciliaris
}}<!--

-->[[Category:Treatment]][[Category:Digitaria]]