Difference between revisions of "Trisetum orthochaetum"
FNA>Volume Importer |
FNA>Volume Importer |
||
| Line 17: | Line 17: | ||
-->{{Treatment/Body | -->{{Treatment/Body | ||
|distribution=Mont. | |distribution=Mont. | ||
| − | |discussion=<p | + | |discussion=<p>Trisetum orthochaetum is known only from Montana, in or near the edges of marshes, seeps, and creeksides, where it grows at about 1465 m. It may be a sterile hybrid between T. canescens and T. wolfii (Shelly 1987).</p> |
|tables= | |tables= | ||
|references= | |references= | ||
| Line 33: | Line 33: | ||
|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| + | |illustrator=Cindy Roché | ||
|distribution=Mont. | |distribution=Mont. | ||
|reference=None | |reference=None | ||
| Line 38: | Line 39: | ||
|publication year= | |publication year= | ||
|special status= | |special status= | ||
| − | |source xml=https:// | + | |source xml=https://bibilujan@bitbucket.org/aafc-mbb/fna-data-curation.git/src/314eb390f968962f596ae85f506b4b3db8683b1b/coarse_grained_fna_xml/V24/V24_1058.xml |
|subfamily=Poaceae subfam. Pooideae | |subfamily=Poaceae subfam. Pooideae | ||
|tribe=Poaceae tribe Poeae | |tribe=Poaceae tribe Poeae | ||
Revision as of 16:04, 30 October 2019
Plants perennial, with both fertile and sterile shoots; shortly rhizomatous. Culms 80-110 cm, solitary, decumbent, often anthocyanic at the base, glabrous. Leaves evenly distributed; sheaths usually glabrous; ligules 3-5 mm, truncate or rounded, erose; blades 8-20 cm long, 3-7 mm wide, flat, lax, scabrous. Panicles 13-20 cm, narrow, moderately dense, nodding, pale green, slightly tinged with purple; branches loosely ascending, naked below for 1-2 cm, the spikelets closely and evenly distributed distally. Spikelets 7-9 mm, subsessile or on pedicels to 1 cm, oblong-ovate, with 2-3(4) florets; rachilla internodes to 2 mm; rachilla hairs about 1 mm. Glumes lanceolate or oblanceolate; lower glumes about 5.5 mm long, about 1 mm wide, widest near the base, slenderly acuminate; upper glumes to 6.3 mm long, about 2 mm wide at or just above the middle, acuminate; callus hairs about 0.5 mm; lemmas 5-6.5 mm long, about 1/3 as wide as long, apices bifid, teeth shorter than 1 mm, awned, awns 4-6 mm, arising about 1 mm below the teeth, not twisted basally, straight or flexuous, exceeding the lemma apices; paleas almost equaling the lemmas; anthers minute or to 1 mm, appearing non-functional; ovaries pubescent. Caryopses to 2.5 mm, malformed. 2n = unknown.
Discussion
Trisetum orthochaetum is known only from Montana, in or near the edges of marshes, seeps, and creeksides, where it grows at about 1465 m. It may be a sterile hybrid between T. canescens and T. wolfii (Shelly 1987).
Selected References
None.