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FNA | Family List | FNA Vol. 20 | Asteraceae | Solidago

5a.2. Solidago simplex Kunth var. nana (A. Gray) G. S. Ringius, Phytologia. 70: 397. 1991.

Dwarf goldenrod

Solidago humilis Pursh var. nana A. Gray in A. Gray et al., Syn. Fl. N. Amer. 1(2): 148. 1884; S. bellidifolia Greene; S. glutinosa Nuttall var. nana (A. Gray) Cronquist; S. hesperia Howell; S. purshii Porter var. nana (A. Gray) Farwell; S. spathulata de Candolle var. nana (A. Gray) Cronquist

Plants 4.5–13.6 cm. Leaves: basal orbiculate to broadly elliptic, bases attenuated to winged petioles, margins distinctly crenate; cauline 2–7, 20–60 × 8–12 mm. Phyllaries: shortest 2.1–3.1 mm. Disc florets: corollas 4.2–5.4 mm. 2n = 18.

Flowering Jul–Aug. Gravelly soils, alpine meadows, gravel slopes; 2000–3000+ m; B.C.; Oreg., Wash.

Variety nana is mainly confined to peaks of the Cascade Mountains in Oregon and Washington, and very rarely on central Vancouver Island, British Columbia.


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