Boykinia major

A. Gray in W. H. Brewer et al.

in W. H. Brewer et al., Bot. California 1: 196. 1876,.

Endemic
Synonyms: Therofon major (A. Gray) Kuntze
Treatment appears in FNA Volume 8. Treatment on page 127. Mentioned on page 126.

Plants: rhizomes proliferating underground. Flowering-stems (20–) 50–130 cm. Basal leaves: petiole 5–25 (–40) cm; blade usually reniform, sometimes cordate, 3–7-lobed to 1/2–3/4 its length, 5–15 (–22) × 7–18 (–26) cm, margins 2–3-times dentate. Cauline leaves: stipules (2–) 6–20 (–35) mm, foliaceous, smaller ones fringed with brown hairs. Inflorescences corymbiform, 8–15 (–21) -flowered per primary branch. Pedicels densely stipitate-glandular. Flowers: hypanthium saucer-shaped, free portion 1–2 mm, densely stipitate-glandular; sepals spreading, triangular, 2–4 mm, apex acute; petals suborbiculate to ovate, 4–7 × 2–5 mm, ca. 2 times as long as sepals, base contracted to claw 0.5–3 mm, margins undulate; nectary yellow; stamens (1.6–) 2–3 mm; ovary inferior. Capsules ovoid, turbinate, or urceolate. Seeds usually black, tuberculate. 2n = 28.


Phenology: Flowering summer(-early autumn).
Habitat: Wet woodlands, margins of lakes, ponds, and watercourses
Elevation: 200-2200 m

Distribution

V8 253-distribution-map.gif

Calif., Idaho, Mont., Oreg.

Discussion

Records of Boykinia major from Alaska (G. W. Cooley 1892) relate to specimens of Heuchera glabra. Some populations from Idaho are polymorphic for dentate versus entire petals, and some plants from northern California have purple blotches proximally on the petals. Specimens intermediate in gross morphology between B. major and B. occidentalis, and which match synthetic hybrids, have been collected from Lane County, Oregon (R. J. Gornall and B. A. Bohm 1985). Boykinia major is occasionally grown in gardens.

Selected References

None.

Lower Taxa

None.

"timesaslongassepals" is not declared as a valid unit of measurement for this property.

... more about "Boykinia major"
palmate +  and grooved +
epigynous +, perigynous +  and hypogynous +
Richard J. Gornall +
A. Gray in W. H. Brewer et al. +
cordate +
15 cm150 mm <br />0.15 m <br /> (22 cm220 mm <br />0.22 m <br />) +
18 cm180 mm <br />0.18 m <br /> (26 cm260 mm <br />0.26 m <br />) +
5 cm50 mm <br />0.05 m <br /> (15 cm150 mm <br />0.15 m <br />) +
dentate +, serrate +  and entire +
glandular-ciliate +  and ciliate +
3-7-lobed +, cordate +  and reniform +
7cm +  and 18cm +
bracteate +  and (3-)5-20(-30)-flowered +
urceolate +, turbinate +  and ovoid +
3-carpellate +  and 2-carpellate +
0.05 cm0.5 mm <br />5.0e-4 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Calif. +, Idaho +, Mont. +  and Oreg. +
200-2200 m +
linear +  and subulate +
unisexual +  and bisexual +
20 cm200 mm <br />0.2 m <br /> (50 cm500 mm <br />0.5 m <br />) +
50 cm500 mm <br />0.5 m <br /> (130 cm1,300 mm <br />1.3 m <br />) +
2-3(-4)-beaked +  and folliclelike +
Wet woodlands, margins of lakes, ponds, and watercourses +
multicellular +
free +  and adnate +
8-15(-21)-flowered +  and corymbiform +
opposite +  and alternate +
undulate +
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 +
distinct +
0.4 cm4 mm <br />0.004 m <br /> (?) +  and 0.7 cm7 mm <br />0.007 m <br /> (?) +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
peltate +  and jointed +
25 cm250 mm <br />0.25 m <br /> (40 cm400 mm <br />0.4 m <br />) +
stipitate-glandular +
5 cm50 mm <br />0.05 m <br /> (25 cm250 mm <br />0.25 m <br />) +
Flowering summer(-early autumn). +
unequal +
stipitate-glandular +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
in W. H. Brewer et al., Bot. California +
proliferating +
underground +
spiny +  and ribbed +
straight +
tuberculate +
ellipsoid +
green +  and purple +
distinct +
triangular +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.16 cm1.6 mm <br />0.0016 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
unbranched +  and branched +
persistent +
horizontal +  and erect +
2 cm20 mm <br />0.02 m <br /> (3.5 cm35 mm <br />0.035 m <br />) +
0.6 cm6 mm <br />0.006 m <br /> (?) +  and 2 cm20 mm <br />0.02 m <br /> (?) +
connate +  and distinct +
stipitate-glandular +
Therofon major +
Boykinia major +
Boykinia +
species +
crenate +  and serrate +
not stoloniferous +  and rhizomatous +
annual +, biennial +  and perennial +