Boykinia richardsonii

(Hooker) Rothrock

Rep. (Annual) Board Regents Smithsonian Inst. 1867: 447. 1868 ,.

Common names: Bear flower Alaska boykinia
Endemic
Basionym: Saxifraga richardsonii Hooker Fl. Bor.-Amer. 1: 247. 1832
Synonyms: Hemieva richardsonii (Hooker) Rafinesque Therofon richardsonii (Hooker) Kuntze
Treatment appears in FNA Volume 8. Treatment on page 128. Mentioned on page 126.

Plants: rhizomes proliferating underground. Flowering-stems 10–40 (–60) cm. Basal leaves: petiole 2.5–10 (–22.5) cm; blade usually reniform, shallowly lobed, rarely to 1/2 its length, 2–7 (–12) × (3–) 5–11 (–15) cm, margins 2–3-times dentate. Cauline leaves: stipules (1–) 2–5 mm, either expansions of petiole base and fringed with brown hairs, or foliaceous. Inflorescences narrowly cylindric, 3-flowered per primary branch. Pedicels densely stipitate-glandular. Flowers: hypanthium campanulate, free portion (1–) 2–3 mm, densely stipitate-glandular; sepals erect, triangular to lanceolate, 3–7 mm, apex acute; petals sometimes with pink veins, ovate to elliptic, 8–12 (–15) × 3–7 mm, 2–3 (–5) times as long as sepals, base short-clawed, margins plane; nectary deep purple, sometimes greenish; stamens 3.3–5.2 mm; ovary subinferior. Capsules ovoid, turbinate, or urceolate. Seeds brown, smooth. 2n = 36, 84.


Phenology: Flowering summer.
Habitat: Stream-side gullies, snow-bed grassland and meadows, in open or in partial shade of Salix thickets
Elevation: 0-1700 m

Discussion

Boykinia richardsonii was originally misidentified as Saxifraga nelsoniana D. Don by W. J. Hooker and G. A. W. Arnott ([1830–]1841); the error was soon rectified. Reports of B. richardsonii from eastern Siberia (P. A. Rydberg 1905; H. G. A. Engler 1930) appear to be erroneous.

Selected References

None.

Lower Taxa

None.

"-3(-5)timesaslongassepals" is not declared as a valid unit of measurement for this property.

... more about "Boykinia richardsonii"
palmate +  and grooved +
epigynous +, perigynous +  and hypogynous +
Richard J. Gornall +
(Hooker) Rothrock +
short-clawed +
Saxifraga richardsonii +
7 cm70 mm <br />0.07 m <br /> (12 cm120 mm <br />0.12 m <br />) +
11 cm110 mm <br />0.11 m <br /> (15 cm150 mm <br />0.15 m <br />) +
2 cm20 mm <br />0.02 m <br /> (7 cm70 mm <br />0.07 m <br />) +
dentate +, serrate +  and entire +
glandular-ciliate +  and ciliate +
lobed +  and reniform +
5cm +  and 11cm +
bracteate +  and (3-)5-20(-30)-flowered +
urceolate +, turbinate +  and ovoid +
3-carpellate +  and 2-carpellate +
Bear flower +  and Alaska boykinia +
Yukon +  and Alaska. +
0-1700 m +
linear +  and subulate +
unisexual +  and bisexual +
40 cm400 mm <br />0.4 m <br /> (60 cm600 mm <br />0.6 m <br />) +
10 cm100 mm <br />0.1 m <br /> (40 cm400 mm <br />0.4 m <br />) +
2-3(-4)-beaked +  and folliclelike +
Stream-side gullies, snow-bed grassland and meadows, in open or in partial shade of Salix thickets +
multicellular +
free +  and adnate +
opposite +  and alternate +
subinferior +
0.07 cm0.7 mm <br />7.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
crassinucellate +, unitegmic +  and bitegmic +
stipitate-glandular +
epigynous +, perigynous +  and hypogynous +
1.2 cm12 mm <br />0.012 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
distinct +
0.8 cm8 mm <br />0.008 m <br /> (?) +  and 1.2 cm12 mm <br />0.012 m <br /> (?) +
Ovate (?) +  and Elliptic (?) +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
peltate +  and jointed +
10 cm100 mm <br />0.1 m <br /> (22.5 cm225 mm <br />0.225 m <br />) +
stipitate-glandular +
2.5 cm25 mm <br />0.025 m <br /> (10 cm100 mm <br />0.1 m <br />) +
Flowering summer. +
unequal +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
stipitate-glandular +
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Rep. (Annual) Board Regents Smithsonian Inst. +
proliferating +
underground +
spiny +  and ribbed +
straight +
tuberculate +
ellipsoid +
green +  and purple +
distinct +
triangular +  and lanceolate +
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
unbranched +  and branched +
persistent +
horizontal +  and erect +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
0.2 cm2 mm <br />0.002 m <br /> (?) +  and 0.5 cm5 mm <br />0.005 m <br /> (?) +
connate +  and distinct +
stipitate-glandular +
Hemieva richardsonii +  and Therofon richardsonii +
Boykinia richardsonii +
Boykinia +
species +
crenate +  and serrate +
not stoloniferous +  and rhizomatous +
annual +, biennial +  and perennial +