Artemisia aleutica

Hultén

Bot. Not. 1939: 829, fig. 2. 1939.

Common names: Aleutian wormwood
EndemicConservation concern
Treatment appears in FNA Volume 19. Treatment on page 505.

Perennials, 5–10 cm (cespitose), mildly aromatic; caudices branched. Stems usually 1, reddish-brown to gray, tomentose to glabrate. Leaves persistent, mostly basal, gray-green; (petioles often expanded) blades (at least proximal) obovate, 1.5–5 × 0.5–1 cm, 2-palmately lobed, lobes relatively narrow, apices acute, faces densely white-villous (brownish in age); cauline smaller, distally 1-ternate. Heads (sessile or peduncles 2–15 mm) in racemiform or spiciform arrays, 1.5–3 × 0.5–1 cm. Involucres hemispheric or globose, (2–) 5–7 × (2–) 6–8 mm. Phyllaries villous. Florets: pistillate 4–6; functionally staminate 15–30; corollas purplish red, 1.5–2 mm, hairy. Cypselae oblong, ca. 1 mm, faintly nerved, glabrous.


Phenology: Flowering mid–late summer.
Habitat: Open areas, fellfield tundra
Elevation: 0–100 m

Discussion

Of conservation concern.

Artemisia aleutica is known only from the western Aleutian Islands. It is morphologically similar to A. borealis, and the relationships of these species complexes warrant further study.

Selected References

None.

Lower Taxa

None.
... more about "Artemisia aleutica"
not tailed +  and obtuse +
scarious +
spiciform +  and racemiform +
indeterminate +  and determinate +
Leila M. Shultz +
Hultén +
decurrent +
compound +  and simple +
1.5 cm15 mm <br />0.015 m <br /> (5 cm50 mm <br />0.05 m <br />) +
lobed;obovate +
0.5cm;1cm +
Aleutian wormwood +
zygomorphic +, actinomorphic +  and (3-)5-merous +
purplish red +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
fertile +  and bisexual +
fertile +  and bisexual +
0–100 m +
gland-dotted +
white-villous +
staminate +  and pistillate +
winged +  and beaked +
dispersed +
Open areas, fellfield tundra +
spiciform +  and racemiform +
in subcapitate clusters +  and singly +
indeterminate +
1.5 cm15 mm <br />0.015 m <br /> (3 cm30 mm <br />0.03 m <br />) +
heterogamous +  and homogamous +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
each +  and sessile +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
0.15 cm1.5 mm <br />0.0015 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
globose;hemispheric +
0.6 cm6 mm <br />0.006 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
sessile +  and petiolate +
gray-green +
persistent +
deltate +
entire +  and dentate +
2-carpellate +
persistent +
Flowering mid–late summer. +
2 +  and 20 +
styliferous +, neuter +  and pistillate +
sterile +  and fertile +
conic;convex;conic;convex;flat +
2 +  and 5 +
exalbuminous +
Endemic +  and Conservation concern +
reddish-brown +  and gray +
wand-like +
appendaged +  and truncate +
papillate +
Compositae +
Artemisia aleutica +
Artemisia subg. Drancunculus +
species +
funnel +  and subglobose +
cylindric +
taprooted +  and fibrous-rooted +
5 cm50 mm <br />0.05 m <br /> (10 cm100 mm <br />0.1 m <br />) +
taprooted +  and fibrous-rooted +