Difference between revisions of "Fimbristylis puberula"
Enum. Pl. 2: 289. 1805.
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|name=Scirpus puberulus | |name=Scirpus puberulus | ||
|authority=Michaux | |authority=Michaux | ||
| + | |rank=species | ||
|publication_title=Fl. Bor.-Amer. | |publication_title=Fl. Bor.-Amer. | ||
|publication_place=1: 31. 1803 | |publication_place=1: 31. 1803 | ||
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-->{{#Taxon: | -->{{#Taxon: | ||
name=Fimbristylis puberula | name=Fimbristylis puberula | ||
| − | |||
|authority=(Michaux) Vahl | |authority=(Michaux) Vahl | ||
|rank=species | |rank=species | ||
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|publication year=1805 | |publication year=1805 | ||
|special status= | |special status= | ||
| − | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/ | + | |source xml=https://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/f50eec43f223ca0e34566be0b046453a0960e173/coarse_grained_fna_xml/V23/V23_200.xml |
|genus=Fimbristylis | |genus=Fimbristylis | ||
|species=Fimbristylis puberula | |species=Fimbristylis puberula | ||
Revision as of 20:06, 16 December 2019
Plants perennial, mostly loosely cespitose, to 100 cm, bases swollen; rhizomes short, knotty, or scaly, slender, contorted. Culms sometimes solitary, narrowly linear, distally angular, glabrous. Leaves ascending, from 1/3 as long to equally as long as culms, glabrous to pubescent; sheaths apically ciliate; ligule essentially absent or (in rhizomatous individuals) present, complete or incomplete; blades narrowly linear, 1–2 mm wide, mostly strongly involute, scabrid-ciliate. Inflorescences: anthelae simple or compound, compact or diffuse, mostly broad, ascending-branching; scapes slender, wandlike, 1 mm thick; lower leafy involucral bracts exceeded by or exceeding panicle. Spikelets variously red-brown, broadly ovoid to lance-cylindric, 5–10 mm; fertile scales broadly ovate, obtuse or obtuse-angled, 2.5–3.5 mm, abaxially glabrous or variously puberulent, midrib excurrent as mucro. Flowers: stamens 3; styles 2-fid, flat, fimbriate. Achenes yellowish to dark brown, lenticular-obovoid, 1 mm, with 11–20 vertical lines of horizontally rectangular or isodiametric, distinct or indistinct pits. 2n = 20.
Distribution
North America.
Discussion
Varieties 2 (2 in the flora).
Selected References
None.
Key
| 1 | Culm bases swollen, knotty, closely joined forming short thick, knotty rhizomes; leaves and sheaths totally pubescent or glabrous; ligule absent or incomplete; backs of involucral sheaths and fertile scales puberulent at least distally. | Fimbristylis puberula var. puberula |
| 1 | Culm bases not swollen, producing several slender, scaly, orange rhizomes; leaves and sheaths mostly glabrous; ligule present, mostly complete; involucral sheaths and fertile scales usually smooth. | Fimbristylis puberula var. interior |