Log In
New Account
Sitemap
Home
Search
Search Collections
Map Search
Chicago Botanic Garden
Project Information
Checklists
Create a Checklist
Dynamic Key
Denver Botanic Gardens
Project Information
Checklists
Create a Checklist
Dynamic Key
Desert Botanical Garden
Project Information
Checklists
Create a Checklist
Dynamic Key
NY Botanical Garden
Project Information
Checklists
Create a Checklist
Dynamic Key
Marie Selby Botanical Gardens
Project Information
Checklists
Create a Checklist
Dynamic Key
Arnica gracilis
Rydb.
Family:
Asteraceae
Slender Leopardbane
[
Arnica arcana
A. Nelson,
more
Arnica columbiana
,
Arnica lactucina
]
FNA
Resources
Steven J. Wolf in Flora of North America (vol. 21)
Plants
10-30 cm.
Stems
(often 5-10 in dense clumps) branched distal-ly.
Leaves
2-3 pairs, mostly cauline (basal leaves often persistent on sterile rosettes, similar to cauline leaves); petiolate (petioles narrowly to broadly winged, distal pair of leaves often reduced, connate-perfoliate); blades ovate to ovate-lanceolate, 2-6 × 1-3 cm, margins irregularly serrate to subentire, apices acute, faces: abaxial glandular, adaxial stipitate-glandular.
Heads
(1-)5-15.
Involucres
turbinate-campanulate.
Phyllaries
10-16, ovate-lanceolate.
Ray florets
5-12; corollas yellow.
Disc florets:
corollas yellow; anthers yellow.
Cypselae
black, 4.5-7 mm, hairy (hairs duplex) and stipitate-glandular;
pappi
white, bristles barbellate.
2
n
= 57, 76.
Flowering Jul-Aug. Dry, exposed, rocky, alpine slopes, sometimes subalpine meadows; 1200-2500 m; Alta., B.C.; Idaho, Mont., Oreg., Utah, Wash., Wyo.
Open Interactive Map
Click to Display
100 Initial Images
- - - - -
View All Images
This project was made possible in part by the Institute of Museum and Library Services [MG-70-19-0057-19].
Powered by
Symbiota