Difference between revisions of "Piptochaetium avenacioides"
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|common_names=Florida speargrass | |common_names=Florida speargrass | ||
| + | |special_status={{Treatment/ID/Special_status | ||
| + | |code=E | ||
| + | |label=Endemic | ||
| + | }} | ||
|basionyms= | |basionyms= | ||
|synonyms= | |synonyms= | ||
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name=Piptochaetium avenacioides | name=Piptochaetium avenacioides | ||
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|authority=(Nash) Valencia & | |authority=(Nash) Valencia & | ||
|rank=species | |rank=species | ||
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|basionyms= | |basionyms= | ||
|family=Poaceae | |family=Poaceae | ||
| + | |illustrator=Cindy Roché | ||
| + | |illustration copyright=Utah State University | ||
|distribution=Fla. | |distribution=Fla. | ||
|reference=None | |reference=None | ||
|publication title= | |publication title= | ||
|publication year= | |publication year= | ||
| − | |special status= | + | |special status=Endemic |
| − | |source xml=https:// | + | |source xml=https://bitbucket.org/aafc-mbb/fna-data-curation/src/200273ad09963decb8fc72550212de541d86569d/coarse_grained_fna_xml/V24/V24_226.xml |
|subfamily=Poaceae subfam. Pooideae | |subfamily=Poaceae subfam. Pooideae | ||
|tribe=Poaceae tribe Stipeae | |tribe=Poaceae tribe Stipeae | ||
Latest revision as of 16:22, 11 May 2021
Culms 70-130 cm, mostly glabrous, sometimes pubescent below the nodes; nodes yellowish, glabrous. Sheaths glabrous; ligules blunt to acute, of basal leaves 0.4-0.7 mm, of upper leaves to 3 mm; blades 15-30 cm long, 0.8-1.5 mm wide, usually involute and 0.5 mm in diameter, 3-veined, abaxial surfaces usually glabrous and smooth, sometimes scabrous, adaxial surfaces usually scabrous over the veins, sometimes smooth, sometimes hairy. Panicles 10-31 cm, open, with 10-50 spikelets; pedicels 15-20 mm, scabrous. Glumes 15-22 mm, (3)5-veined; florets 13.5-22 mm long, 1-2 mm thick, terete; calluses 3.5-8 mm, sharp, strigose, hairs golden brown at maturity; lemmas glabrous, tan to brown at maturity, mostly smooth, sharply tuberculate distally, contracted below the crown; crowns 0.6-0.7 mm wide, hairy, hairs 0.2-0.6 mm; awns 62-120 mm, persistent, twice-geniculate; paleas 9-12 mm; lodicules 2; anthers 4-7 mm. 2n = unknown.
Discussion
Piptochaetium avenacioides grows in dry woods, generally on sandy ridges. It is endemic to Florida, growing primarily in the central peninsula. Morph-ologically, it is very similar to P. avenaceum, differing only in its larger size and more restricted distribution.
Selected References
None.