Poaceae tribe Pappophoreae

Kunth
Treatment appears in FNA Volume 25. Treatment on page 285.

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.

Discussion

The tribe Pappophoreae includes five genera and approximately 40 species. It is represented in tropical and warm regions around the world.

Key

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 Cottea
1 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
2 Lower glumes 1-veined; lemma awns scabridulous, not plumose Pappophorum
2 Lower glumes 5-7-veined; lemma awns plumose, not scabridulous Enneapogon

"decumbent" is not a number.

1 +  and 3 +
John R. Reeder +
1 (?) +  and 3 (?) +
multiple +, , +  and single +
keeled +  and rounded +
pseudopetiolate +  and branching +
not fused +
intravaginal +, extravaginal +, branching +  and basal +
swelling +
membranous +
not pseudopetiolate +
usually linear +  and lanceolate occasionally ovate +
spikelike +
triangular +  and dome--shaped +
ascending +  and erect +
not waisted +
capillary +
pistillate +  and staminate +
sometimes longer +
3 +  and 10 +
round +  and compressed +
shorter or longer +
subtending +
uncinate +
spicate +  and ebracteate +
paniculate +  and racemose +
hollow +  and solid +
not absent +
inconspicuous +
concealed +  and prominent +
2 +  and 1 +
dry +  and fleshy +
reeder1965a +  and reeder1968b +
1 +  and 60 +
compressed +
1 +  and 3 +
compound +  and simple +
2 (?) +  and 3 (?) +
Gramineae +
Poaceae tribe Pappophoreae +
Poaceae subfam. Chloridoideae +
membranous +
annual +  and perennial +
aquatic +  and terrestrial +
dioecious +, monoecious +  and synoecious +