Gutierrezia serotina
Pittonia 4: 57. 1899.
Common names: Late snakeweed
Endemic
Synonyms: Gutierrezia polyantha A. Nelson
Subshrubs, 15–30 cm. Stems glabrous. Leaves: basal absent at flowering; cauline blades 1-nerved, linear to filiform, 0.5–1 mm wide, reduced distally. Heads borne singly or (sessile in glomerate clusters of 3–5) in loose arrays. Involucres narrowly campanulate (lengths ± equaling diams.), 3–4 mm diam. Phyllary apices flat. Ray-florets 4–9; corollas yellow, 2.3–4 (–5.4) mm. Disc-florets (8–) 10–12 (–17). Cypselae 1–1.2 mm, faces densely strigoso-sericeous (hairs ± twisted, apically attenuate); pappi of 1–2 series of oblanceolate scales 0.5–1 mm. 2n = 8.
Phenology: Flowering Apr–May and/or Aug–Oct.
Habitat: Grasslands, Larrea flats
Elevation: 400–1200 m
Discussion
Selected References
None.
Lower Taxa
None.
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... more about "Gutierrezia serotina"
introrse +
connate +
distinct +
herbaceous +
scarious +
hirsute +
papillate +
continuous +
absent +
decurrent +
white-indurate +
linear;lanceolate or spatulate +
ribbed +
stigmatic +
persistent +
absent +
1-nerved +
reduced +
Late snakeweed +
yellow +
absent +
5-8-nerved +
dimorphic +
hairy +
1mm;1.2mm +
staminate +
staminate +
Ariz. +
straight +
resinous +
gland-dotted +
strigoso-sericeous +
distinct +
proximal +
1;5 +
bisexual +
dispersed +
cluster +
indeterminate +
surrounding +
campanulate +
alternate +
erect +
short-deltate +
scarious +
2-carpellate +
inferior +
attached +
anatropous +
erose-margined +
irregular +
persistent +
connate +
falling +
tough +
thick +
absent +
connate +
persistent +
distinct +
falling +
unequal +
Pittonia +
1899 +
pistillate +
absent +
fertile +
epaleate +
pitted +
flat;conic +
fibrous +
oblanceolate +
exalbuminous +
modifed +
1;2 +
Endemic +
alternate +
branched +
glabrous +
linear-lanceolate +
2-branched +
glabrous +
Gutierrezia serotina +
Gutierrezia +
species +
shorter +
subshrub +