Difference between revisions of "Boschniakia rossica"
Fl. Evropeiskoi Ross., 896. 1910.
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|species=Boschniakia rossica | |species=Boschniakia rossica | ||
Revision as of 20:27, 27 May 2020
Stems 1–3, dark wine red or purple, unbranched, 9–38 cm, with rhizomelike cylindric to globular base 10–25(–40) mm diam. Leaves yellow or wine red; blade triangular, lanceolate, or ovate, 3–10 mm. Spikes dark purple or red, 10–25 mm diam.; bracts yellow or yellow-tipped, sometimes translucent, triangular, lanceolate, or ovate, margins erose or ciliolate, apex acute or acuminate, rarely rounded. Flowers: calyx purple or red-brown, cleft adaxially, 3–6 mm; corolla 8–13 mm, glabrous except margins, tube base ± inflated, abaxial lobes 0–1 mm, margins white-ciliate; stamens included or exserted; ovary ovoid; style base persistent on fruit. Capsules subglobular, 5–6 × 5–6 mm, apex beaked. Seeds 0.5–0.7 × 0.2–0.3 mm, reticulate, foveate.
Phenology: Flowering Jun–Aug.
Habitat: Forests, muskegs, bogs, coastal and interior along streams and lakeshores.
Elevation: 0–1500 m.
Distribution
Alta., B.C., N.W.T., Yukon, Alaska, Asia (n China, Russian Far East).
Discussion
The confirmed host of Boschniakia rossica is Alnus; unconfirmed hosts include Betula and Vaccinium; dubious hosts include Chamaedaphne, Picea, and Salix.
Boschniakia rossica has a rather uniform morphology in North America; however, var. flavida Y. Zhang & J. Y. Ma has been described in a region of China.
Selected References
None.