Artemisia alaskana
Rydb.
Family:
Asteraceae
[
Artemisia tyrrellii
]
FNA
Resources
Leila M. Shultz in Flora of North America (vol. 19, 20 and 21)
Perennials or subshrubs,
15-30(-60) cm (not cespitose), aromatic (caudices woody).
Stems
1-10, erect, gray-green, simple (suf-frutescent from woody offsets), densely hairy to glabrescent.
Leaves
basal and cauline, mostly gray-green; blades obovate, 1.5-5 × 0.5-1.5 cm, 3-lobed to 2-ternately lobed (lobes 0.5-3 mm wide, margins flat; cauline leaves smaller, sometimes entire), faces tomentose.
Heads
(peduncles 0 or to 30 mm) in (leafy) paniculiform to racemiform arrays 12-25 × 1-4.5 cm.
Involucres
broadly campanulate, 3.5-5 × 6-9 mm.
Phyllaries
ovate (margins brownish or hyaline), tomentose.
Florets:
pistillate 8-10; bisexual 20-45; corollas yellow, 2-2.5 mm, glabrous or glandular.
Cypselae
ellipsoid (flattened), 1-1.5 mm, glabrous.
2
n
= 18.
Flowering early-late summer. Well-drained soils, flood plains, gravel stream banks, roadsides, dry, rocky slopes, forest openings, alpine and arctic tundras; 100-2500 m; B.C., N.W.T., Yukon; Alaska.
As circumscribed here,
Artemisia alaskana
is known from northwestern North America. The type specimen of
A. alaskana
is atypical, with longer peduncles and narrower leaf lobes than are found in most populations.
Open Interactive Map
Click to Display
100 Initial Images
- - - - -
View All Images
Powered by
Symbiota