Download Cola de zorra (Polypogon elongatus)

Cola de zorra (Polypogon elongatus)
Si n ón i mos: Raspailia agrostoidea, Nowodworskya agrostoides, Chaetotropis elongata, Alopecurus elongatus,
Polypogon inaequalis, Polypogon intermedius, Polypogon mexicanus, Chaetotropis elongata var. elongata , Chaetotropis
elongata var. longearistata , Polypogon elongatus var. strictus
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National distribution 1
United States
Ori gi n : Unknown/Undetermined
R egu l ari ty : Regularly occurring
Cu rren tl y : Unknown/Undetermined
Con fi d en ce : Confident
Physical description
Perennials, Aquatic, leaves emergen t, Terrestrial, not aquatic, Stems nodes swollen or brittle, Stems erect or
ascending, Stems geniculate, decumbent, or lax, sometimes rooting at nodes, Stems caespitose, tufted, or clustered,
Stems terete, round in cross section, or polygonal, Stem internodes hollow, Stems with inflorescence less than 1 m tall,
Stems, culms, or scapes exceeding basal leaves, Leaves mostly cauline, Leaves conspicuously 2-ranked, distichous,
Leaves sheathing at base, Leaf sheath mostly open, or loose, Leaf sheath smooth, glabrous, Leaf sheath and blade
differentiated, Leaf blades linear, Leaf blades 2-10 mm wide, Leaf blades 1-2 cm wide, Leaf blades mostly flat, Leaf
blades mostly glabrous, Ligule present, Ligule an unfringed eciliate membrane, Inflorescence terminal, Inflorescence a
contracted panicle, narrowly paniculate, branches appressed or ascending, Inflorescence a dense slender spike-like
panicle or raceme, branches contracted, Inflorescence solitary, with 1 spike, fascicle, glomeru le, head, or cluster per
stem or culm, Inflorescence spike ovoid, lanceolate, or oblong, not more than twice as long as wide, Inflorescence
single raceme, fascicle or spike, Inflorescence branches more than 10 to numerous, Flowers bisexual, Spikelets
pedicellate, Spikelets laterally compressed, Spikelet less than 3 mm wide, Spikelets with 1 fertile floret, Spikelets
solitary at rachis nodes, Spikelets all alike and fertille, Spikelets bisexual, Spikelets disarticulating below the glumes,
Spikelets falling with parts of disarticulating rachis or pedicel, Rachilla or pedicel glabrous, Glumes present, empty
bracts, Glumes 2 clearly present, Glumes equal or subequal, Glumes equal to or longer than adjacent lemma, Glume
equal to or longer than spikelet, Glumes awned, awn 1-5 mm or longer, Glumes keeled or winged, Glumes 1 nerved,
Lemmas thin, chartaceous, hyaline, cartilaginous, or membranous, Lemma 5-7 nerved, Lemma glabrous, Lemma apex
dentate, 3-5 fid, Lemma mucronate, very s hortly beaked or awned, less than 1-2 mm, Lemma distinctly awned, more
than 2-3 mm, Lemma with 1 awn, Lemma awn less than 1 cm long, Lemma awn from sinus of bifid apex, Lemma awns
straight or curved to base, Lemma margins thin, lying flat, Lemma straight, Palea present, well developed, Palea
membranous, hyaline, Palea about equal to lemma, Palea 2 nerved or 2 keeled, Stamens 3, Styles 2-fid, deeply 2branched, Stigmas 2, Fruit - caryopsis.
National nature serve conservation status 1
United States
R ou n d ed N ati on al Statu s R an k : NNR - Unranked
References
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