| John R. Reeder |
Plants perennial; rarely annual. Culms herbaceous. Ligules of hairs; blade epidermes with bicellular microhairs. Inflorescences terminal, dense, narrow to somewhat open panicles; disarticulation above the glumes but not between the florets (except in Cottea). Spikelets with 3-10 florets, sometimes only the lowest floret bisexual. Lemmas 5-13-veined, veins extending into awns, often with intermixed hyaline lobes. Caryopses with punctate hila; embryos 1/2 or more as long as the caryopses. x = 10.
The tribe Pappophoreae includes five genera and approximately 40 species. It is represented in tropical and warm regions around the world.
1 |
Spikelets
disarticulating above the glumes and between the florets; florets
6-10, the lemmas with both awns and awned teeth, these not forming
a pappuslike crown ..... 18.03 Cottea |
Spikelets disarticulating above
the glumes but not between the florets, these falling as a unit;
florets 3-6, the lemmas awned but without awned teeth, the awns
forming a pappuslike crown (2) |
|
Lower glumes
1-veined; lemma awns scabridulous, not plumose ..... 18.01 Pappophorum |
|
Lower glumes 5-7-veined; lemma
awns plumose, not scabridulous ..... 18.02 Enneapogon |