Contact Us
Log in
Sandbox Portal
Use for testing only
Home
Search Collections
Map Search
Checklists
Image Search
Data Use
About Symbiota
Sitemap
Help
Vernonia lettermannii
Engelm. ex A. Gray
Family:
Asteraceae
Flora of North America
Resources
John L. Strother in Flora of North America (vol. 19, 20 and 21)
Plants
(2-)5-6+ dm.
Stems
glabrous or glabrate.
Leaves
mostly cauline; blades filiform, 5-9+ cm × 1-3+ mm, l/w = 25-50+, abaxially glabrate (pitted, awl-shaped hairs in pits), adaxially puberulent, glabrescent (sometimes pitted).
Heads
in corymbi-form arrays.
Peduncles
6-20+ mm.
Involucres
narrowly campanulate, 7-9(-10+) × 4-5+ mm.
Phyllaries
30-40+ in 5-6+ series, sparsely tomentose, glabrescent, margins arachno-ciliolate, the outer lanceolate to subulate, 1-3 mm, inner oblong to lanceolate, 5-7+ mm, tips acute.
Florets
10-12+.
Cypselae
3-4 mm;
pappi
fuscous to purplish, outer scales 25+, 0.1-0.5 mm, contrasting with 35+, 6-7+ mm inner bristles.
2
n
= 34. Flowering Jul-Aug. Flood plains, terraces; 100-200 m; Ark., Okla.
Open Interactive Map
Click to Display
10 Total Images