Ageratina wrightii
Phytologia 19: 228. 1970.
Common names: Wright’s snakeroot
Basionym: Eupatorium wrightii A. Gray Smithsonian Contr. Knowl. 3(5): 87. 1852
Shrubs, 50–150 cm. Stems erect, puberulous. Leaves opposite proximally, alternate on distal 1/3–1/2 of stem; petioles narrowly winged, 3–5 (–8) mm; blades ovate to deltate-ovate, mostly 1–2 × 0.5–1.5 (–2) cm, bases truncate to cuneate or attenuate, margins entire or shallowly crenate, apices acute to blunt or obtuse, abaxial faces glanddotted. Heads clustered. Peduncles 1–3 mm, puberulent. Involucres 3.5–4.5 mm. Phyllaries: apices acute, abaxial faces puberulent. Corollas pinkish white to pink, glabrous. Cypselae sparsely hispidulous.
Phenology: Flowering (Jul–)Aug–Oct(–Nov).
Habitat: Limestone slopes, ledges, alluvium, in brushy vegetation
Elevation: 1300–2200 m
Distribution
Ariz., N.Mex., Tex., Mexico
Discussion
Selected References
None.
Lower Taxa
None.
"fine" is not a number.
... more about "Ageratina wrightii"
puberulent +
introrse +
connate +
acute;acute;blunt or obtuse +
scarious +
absent +
hirsute +
papillate +
corymbiform +
continuous +
glabrous +
3(-5)-nerved +
ovate;deltate-ovate +
(4-)5-angled;10-ribbed +
dilated +
stigmatic +
barbellulate +
5;40 +
coarse +
absent +
Wright’s snakeroot +
not 2-lipped +
glabrous +
monomorphic +
5-ribbed +
hispidulous +
scabrellous +
straight +
distinct +
proximal +
10;60 +
bisexual +
dispersed +
singly +
discoid +
singly +
clustered +
indeterminate +
homogamous +
surrounding +
campanulate +
petiolate +
cauline +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
fragile +
falling +
puberulent +
tough +
thick +
connate +
winged +
persistent +
distinct +
equal +
Phytologia +
1970 +
absent +
epaleate +
convex +
fibrous +
exalbuminous +
modifed +
1;2 +
alternate +
branched +
scandent +
erect +
puberulous +
2-branched +
hirsutulous +
papillate +
Ageratina wrightii +
Ageratina +
species +
perennial +