Difference between revisions of "Chamaenerion angustifolium subsp. circumvagum"

Latest revision as of 11:31, 9 May 2022

Stems 30–200 cm, sparsely strigillose, usually glabrous proximally. Leaves: petioles 2–7 mm; cauline blades oblong- to elliptic-lanceolate, (6–)9–23 × (0.7–)1.5–3.4 cm, base subcuneate to attenuate, margins ± denticulate, surface strigillose on adaxial side and on abaxial midrib, or, rarely, glabrous. Inflorescences strigillose; bracts 7–25 mm. Flowers: sepals 9–19 × 1.5–3 mm, acuminate; petals obovate to suborbicular, 14–25 × 7–14 mm, entire or scarcely emarginate; filaments 8–17 mm; anthers 2.5–3 mm; pollen mixed 3- and 4-porate (rarely 5-porate), 70–95 µm diam.; ovaries 8–25 mm, style 9–18 mm. Capsules 5–9.5 cm; pedicels 1–3 cm. Seeds 1–1.3 × 0.3–0.4 mm. 2n = 72, 108.

Phenology: Flowering Jun–Sep.
Habitat: Moist, often disturbed places in montane and boreal forest regions, frequent after fires.
Elevation: 0–3800 m.

St. Pierre and Miquelon, Alta., B.C., Man., N.B., Nfld. and Labr., N.W.T., N.S., Ont., P.E.I., Que., Sask., Yukon, Alaska, Ariz., Ark., Calif., Colo., Conn., Del., Idaho, Ill., Ind., Iowa, Maine, Md., Mass., Mich., Minn., Mont., Nebr., Nev., N.H., N.J., N.Mex., N.Y., N.C., N.Dak., Ohio, Oreg., Pa., R.I., S.Dak., Tenn., Utah, Vt., Va., Wash., W.Va., Wis., Wyo., Mexico (Coahuila, Nuevo León), Eurasia.

Discussion

Selected References

None.

Lower Taxa