Artemisia alaskana

Rydberg in N. L. Britton et al.

in N. L. Britton et al., N. Amer. Fl. 34: 281. 1916

Common names: Siberian wormwood
Synonyms: Artemisia tyrrellii Rydberg
Treatment appears in FNA Volume 19. Treatment on page 523. Mentioned on page 521.
Perennials or subshrubs, 15–30(–60) cm (not cespitose), aromatic (caudices woody). Stems 1–10, erect, gray-green, simple (suffrutescent 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. 2n = 18.

Phenology: Flowering early–late summer.
Habitat: Well-drained soils, flood plains, gravel stream banks, roadsides, dry, rocky slopes, forest openings, alpine and arctic tundras
Elevation: 100–2500 m

Distribution

V19-892-distribution-map.gif

B.C., N.W.T., Yukon, Alaska.

Discussion

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.

References

None.

Lower Taxa

No lower taxa listed.

Facts about "Artemisia alaskana"
AuthorLeila M. Shultz +
AuthorityRydberg in N. L. Britton et al. +
Common nameSiberian wormwood +
DistributionB.C. +, N.W.T. +, Yukon + and Alaska. +
Elevation100–2500 m +
HabitatWell-drained soils, flood plains, gravel stream banks, roadsides, dry, rocky slopes, forest openings, alpine and arctic tundras +
IllustratorLinda Ann Vorobik +
PhenologyFlowering early–late summer. +
Publication titlein N. L. Britton et al., N. Amer. Fl. +
Publication year1916 +
ReferenceNone +
Source xmlhttps://jpend@bitbucket.org/aafc-mbb/fna-data-curation.git/src/9216fc802291cd3df363fd52122300479582ede7/coarse grained fna xml/V19-20-21/V19 892.xml +
SynonymsArtemisia tyrrellii +
Taxon familyAsteraceae +
Taxon nameArtemisia alaskana +
Taxon parentArtemisia subg. Artemisia +
Taxon rankspecies +
VolumeVolume 19 +