Chromolaena bigelovii
Phytologia 20: 208. 1970.
Common names: Bigelow’s false thoroughwort
Basionym: Eupatorium bigelovii A. Gray in W. H. Emory, Rep. U.S. Mex. Bound. 2(1): 75. 1859
Synonyms: Eupatorium madrense S. Watson
Treatment appears in FNA Volume 21. Treatment on page 544.
Shrubs, 50–150 cm. Stems erect, sparsely puberulent. Petioles 1–4 mm. Leaf-blades deltate to deltate-lanceolate or ovatelanceolate, 3–7 × 1–4 cm, margins serrate to dentate (abaxial faces reticulate-veiny with raised whitish, secondary-veins, minutely glanddotted). Heads usually in 3s, sometimes borne singly. Peduncles 0 or 2–8 (–12) mm. Involucres turbinate to campanulate, 5–7 mm. Phyllaries in 4–5 series, apices of the inner appressed, acute (not petaloid or expanded). Corollas pale blue or white.
Phenology: Flowering Oct–Dec.
Habitat: Dry limestone hills in oak woodlands, talus
Elevation: 1000–1800 m
Distribution
Tex., Mexico (Coahuila), Mexico (Nuevo León), Mexico (San Luis Potosí)
Discussion
Selected References
None.
Lower Taxa
None.
"fine" is not a number.
... more about "Chromolaena bigelovii"
introrse +
connate +
appressed +
acute +
scarious +
absent +
hirsute +
papillate +
continuous +
glabrous +
decurrent +
3-nerved +
elliptic +
mostly deltate;ovate +
(4-)5-angled;10-ribbed +
linear;linear-clavate +
stigmatic +
barbellate +
coarse +
absent +
Bigelow’s false thoroughwort +
not 2-lipped +
monomorphic +
(3-)5-ribbed +
scabrellous +
prismatic +
straight +
distinct +
proximal +
15;40 +
bisexual +
dispersed +
singly +
discoid +
singly +
indeterminate +
homogamous +
surrounding +
turbinate;campanulate +
deltate;deltate-lanceolate or ovatelanceolate +
1cm;4cm +
opposite +
cauline +
2-carpellate +
inferior +
attached +
anatropous +
persistent +
absent +
2-8(-12) mm +
tough +
thick +
connate +
3-5-nerved +
persistent +
distinct +
falling +
unequal +
equal +
Phytologia +
1970 +
absent +
flat;convex +
fibrous +
exalbuminous +
modifed +
4;5 +
alternate +
branched +
erect +
puberulent +
2-branched +
hirsutulous +
papillate +
Chromolaena bigelovii +
Chromolaena +
species +
cylindric +
perennial +