Ageratina lemmonii
Phytologia 19: 223. 1970.
Common names: Lemmon’s snakeroot
Basionym: Eupatorium lemmonii B. L. Robinson Proc. Amer. Acad. Arts 27: 171. 1892 (as lemmoni)
Revision as of 22:59, 29 July 2020 by imported>Volume Importer
Perennials, 20–40 (–70) cm (densely fibrous-rooted crowns). Stems (commonly purple) erect, puberulous (hairs usually with colored crosswalls). Leaves opposite; petioles usually 0, sometimes 1–2 mm; blades ovatelanceolate, 2–4.5 × 0.5–2.5 cm, margins shallowly serrate, abaxial faces glabrous or glabrate, glanddotted. Heads in loose, open arrays. Peduncles 10–60 mm, puberulent. Involucres 4–5.5 mm. Phyllaries: (narrowly oblong-lanceolate) apices acute, abaxial faces sparsely hairy to glabrate. Corollas white, lobes densely hispid-villous. Cypselae sparsely and finely hispidulous. 2n = 34.
Phenology: Flowering Aug–Oct.
Habitat: Rocky slopes, mostly in pine-oak woodlands
Elevation: 1800–2800[–3300, Mexico] m
Discussion
Selected References
None.
Lower Taxa
None.
"fine" is not a number.
... more about "Ageratina lemmonii"
introrse +
connate +
acute +
scarious +
absent +
hirsute +
papillate +
open +
continuous +
glabrous +
decurrent +
3(-5)-nerved +
ovatelanceolate +
(4-)5-angled;10-ribbed +
dilated +
stigmatic +
barbellulate +
5;40 +
coarse +
absent +
Lemmon’s snakeroot +
not 2-lipped +
white +
monomorphic +
5-ribbed +
hispidulous +
scabrellous +
straight +
distinct +
proximal +
10;60 +
bisexual +
dispersed +
singly +
discoid +
singly +
indeterminate +
homogamous +
surrounding +
campanulate +
petiolate +
opposite +
cauline +
hispid-villous +
serrate +
crenate +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
fragile +
falling +
puberulent +
tough +
thick +
connate +
absent +
persistent +
distinct +
equal +
Phytologia +
1970 +
absent +
epaleate +
convex +
fibrous +
exalbuminous +
modifed +
1;2 +
alternate +
branched +
scandent +
erect +
puberulous +
2-branched +
hirsutulous +
papillate +
Ageratina lemmonii +
Ageratina +
species +
perennial +