Juncus arcticus var. alaskanus

(Hulten) S. L. Welsh

Anderson's Flora of Alaska and Adjacent Parts of Canada 611. 1974.

Common names: Alaskan rush
Basionym: Juncus arcticus subsp. alaskanus Hultén Fl. Alaska Yukon 3: 418. 1943
Synonyms: Juncus arcticus subsp. sitchensis Engelmann Juncus balticus var. alaskanus (Hultén) A. E. Porsild Juncus balticus var. haenkei (E. Meyer) Buchenau Juncus balticus subsp. sitchensis (Engelmann) Hultén Juncus haenkei
Treatment appears in FNA Volume 22.

Herbs, 1–3 dm. Culms 0.7–1.2 mm diam. Leaves: blade absent. Inflorescences 3–8-flowered, slightly compact, 1–1.5 cm; primary bract 3–8 cm. Flowers: tepals shining chestnut brown with lighter midstripe, lanceolate, 4–5(–6) mm, apex acuminate; inner series shorter, margins clear, obtuse to acute; stamens 2 mm, filaments 1 mm, anthers 1 mm. Capsules dark tan, oblate, 3–4 mm diam., usually slightly exceeding perianth.

Phenology: Flowering spring–summer.
Habitat: Moist to dry places, wet meadows, stream banks
Elevation: 0–2200 m


V22 413-distribution-map.jpg

Greenland, B.C., Man., Nfld. and Labr. (Labr), N.W.T., Nunavut, Ont., Que., Yukon, Alaska, Asia.


Perhaps Juncus arcticus var. alaskanus is not distinct from the Eurasian J.uncus arcticus var. arcticus.

Selected References


Lower Taxa

Ralph E. Brooks* +  and Steven E. Clemants* +
(Hulten) S. L. Welsh +
Juncus arcticus subsp. alaskanus +
Alaskan rush +
Greenland +, B.C. +, Man. +, Nfld. and Labr. (Labr) +, N.W.T. +, Nunavut +, Ont. +, Que. +, Yukon +, Alaska +  and Asia. +
0–2200 m +
Moist to dry places, wet meadows, stream banks +
Flowering spring–summer. +
Anderson's Flora of Alaska and Adjacent Parts of Canada +
Illustrated +
Juncus arcticus subsp. sitchensis +, Juncus balticus var. alaskanus +, Juncus balticus var. haenkei +, Juncus balticus subsp. sitchensis +  and Juncus haenkei +
Juncus arcticus var. alaskanus +
Juncus arcticus +
variety +