Palafoxia riograndensis
Rhodora 48: 84. 1946.
Annuals, 30–60 cm. Stems scabrous to glabrate, not stipitate-glandular. Leaf-blades lance-linear, 30–70 × 2–8 mm. Involucres ± cylindric. Phyllaries 10–15 × 1–2 mm, ± equal, ± scabrous, not stipitate-glandular. Ray-florets 0. Disc-florets 8–25; corollas zygomorphic (outer) to actinomorphic (inner), 6–9 mm, throats ± funnelform, shorter than lobes. Cypselae 7–12 mm; pappus-scales of inner cypselae 5–8 mm. 2n = 24.
Phenology: Flowering (spring–)late summer–fall.
Habitat: Sandy or silty soils
Elevation: 50–200+ m
Distribution
Tex., Mexico (Chihuahua), Mexico (Coahuila)
Discussion
Selected References
None.
Lower Taxa
None.
... more about "Palafoxia riograndensis"
introrse +
connate +
herbaceous +
scarious +
absent +
hirsute +
papillate +
continuous +
decurrent +
broadly lanceolate;linear +
winged;ribbed;winged;ribbed +
1;15 +
stigmatic +
6;80 +
absent +
monomorphic +
dimorphic +
hairy +
7mm;12mm +
staminate +
straight +
scabrellous +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
singly +
radiant +
indeterminate +
surrounding +
cylindric +
lance-linear +
2mm;8mm +
cauline +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
fragile +
falling +
tough +
thick +
absent +
connate +
persistent +
distinct +
falling +
not stipitate-glandular +
scabrous +
unequal +
equal +
Rhodora +
1946 +
pistillate +
absent +
fertile +
epaleate +
pitted +
knobby +
fibrous +
distinct +
scarious +
exalbuminous +
modifed +
1;2 +
alternate +
branched +
erect +
2-branched +
papillate +
Palafoxia riograndensis +
Palafoxia +
species +
shorter +
cylindric +
shorter +
much longer than short +
annual +