Difference between revisions of "Boykinia intermedia"
Bot. Surv. Olympic Penins., 168. 1936,.
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|name=Boykinia major var. intermedia | |name=Boykinia major var. intermedia | ||
|authority=Piper | |authority=Piper | ||
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|publication_title=Erythea | |publication_title=Erythea | ||
|publication_place=7: 172. 1899 | |publication_place=7: 172. 1899 | ||
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|name=Therofon intermedium | |name=Therofon intermedium | ||
|authority=(Piper) A. Heller | |authority=(Piper) A. Heller | ||
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}} {{Treatment/ID/Synonym | }} {{Treatment/ID/Synonym | ||
|name=Therofon major subsp. intermedium | |name=Therofon major subsp. intermedium | ||
|authority=(Piper) Piper | |authority=(Piper) Piper | ||
| + | |rank=subspecies | ||
}} | }} | ||
|hierarchy=Saxifragaceae;Boykinia;Boykinia intermedia | |hierarchy=Saxifragaceae;Boykinia;Boykinia intermedia | ||
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name=Boykinia intermedia | name=Boykinia intermedia | ||
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|authority=(Piper) G. N. Jones | |authority=(Piper) G. N. Jones | ||
|rank=species | |rank=species | ||
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|genus=Boykinia | |genus=Boykinia | ||
|species=Boykinia intermedia | |species=Boykinia intermedia | ||
Latest revision as of 22:42, 5 November 2020
Plants stoloniferous; rhizomes proliferating above ground. Flowering stems 25–70 cm. Basal leaves: petiole 3–15 cm; blade reniform, 3–7-lobed to 1/2–3/4 its length, (3–)5–11 × (5–)8–14 cm, margins 2–3-times dentate. Cauline leaves: stipules (2–)4–9 mm, usually foliaceous, smaller ones fringed with brown hairs. Inflorescences ± pyramidal, (5–)9–13-flowered per primary branch. Pedicels densely stipitate-glandular. Flowers: hypanthium campanulate to turbinate, free portion 0.8–1.3 mm, densely stipitate-glandular; sepals erect, lanceolate, (1.5–)2–3 mm, apex acute; petals spatulate to ovate, 3–7 × 1–3 mm, base tapered to claw, margins plane; nectary greenish yellow; stamens 1.3–1.8 mm; ovary subinferior. Capsules ovoid, turbinate, or urceolate. Seeds usually black, tuberculate. 2n = 28.
Phenology: Flowering summer.
Habitat: Temperate rainforest, margins of lakes, ponds, and watercourses
Elevation: 10-700 m
Discussion
Of conservation concern.
Specimens considered to represent Boykinia intermedia from northern Idaho (R. Bacigalupi 1952; F. D. Johnson and R. Steele 1978) were regarded as B. major by R. J. Gornall and B. A. Bohm (1985); they require further study. Boykinia intermedia differs from that species in its stoloniferous habit, smaller stipules, a campanulate rather than saucer-shaped hypanthium, a shorter free-hypanthium, petals tapered rather than contracted abruptly to a claw and with plane rather than undulate margins, a more pyramidal inflorescence, and an absence of polymethylated flavonols.
Selected References
None.