Cornus sessilis

Torrey in E. M. Durand

Pl. Pratten. Calif., 89. 1855.

Common names: Blackfruit dogwood
IllustratedEndemic
Treatment appears in FNA Volume 12. Treatment on page 449.

Shrubs or trees, to 5 m, flowering at 2 m. Stems solitary; bark corky; branches splotched with maroon, brown, or red, eventually splitting along longitudinal swellings; branchlets green, densely appressed-hairy; lenticels maroon swellings, often erupting with corky surface. Leaves: petiole 5–10 mm, base encircling twig; blade elliptic, 4–9 × 2–4 cm, base cuneate, apex acute or short acuminate, abaxial surface yellow-green, appressed-hairy, tufts of erect hairs in axils of secondary-veins, adaxial surface dark green, sparsely appressed-hairy; secondary-veins 4–5 per side, most usually arising from basal 1/2. Inflorescences 10–15-flowered; peduncle 0–1 mm; bracts tan or brown, lanceolate, 0.5–1 cm, apex acute. Pedicels lax, apex flared. Flowers: hypanthium narrowly conic, appressed-hairy; sepals 0.1–0.5 mm; petals greenish yellow, lanceolate, 3–4 mm. Drupes maturing from green to yellow, red, then purple-black, ellipsoid, 10–15 × 5–7.5 mm; stone widely fusiform, 8–12 × 4–6 mm, with 2 lateral grooves on distal 2/3.2n = 20.


Phenology: Flowering Mar–Jun; fruiting Aug–Sep.
Habitat: Moist ravines and stream banks.
Elevation: 60–2000 m.

Discussion

Cornus sessilis is restricted to northern California, generally in the Klamath Range, Cascade Range, and northern Sierra Nevada, and southern Oregon in the Siskiyou Mountains.

Selected References

None.

Lower Taxa

None.
... more about "Cornus sessilis"
versatile +  and dorsifixed +
Flared (?) +, Acute (?) +, Acuminate (?) +  and Short (?) +
curling +
ornamented +
Zack E. Murrell +  and Derick B. Poindexter +
Torrey in E. M. Durand +
cuneate +
4 cm40 mm <br />0.04 m <br /> (9 cm90 mm <br />0.09 m <br />) +
lanceolate +  and broadly ovate +
2cm;4cm +
not petaloid +
lanceolate +
red +  and brown +
appressed-hairy +
Blackfruit dogwood +
expanding +  and minute +
Calif. +  and Oreg. +
purple-black +, red +, green +  and yellow +
distinct +
1 cm10 mm <br />0.01 m <br /> (1.5 cm15 mm <br />0.015 m <br />) +
ellipsoid +
0.5 cm5 mm <br />0.005 m <br /> (0.75 cm7.5 mm <br />0.0075 m <br />) +
60–2000 m. +
Moist ravines and stream banks. +
appressed-hairy +
terminal +  and axillary +
intrastaminal +
0 cm0 mm <br />0 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
distinct +
recurved +  and spreading +
0.3 cm3 mm <br />0.003 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
Flowering Mar–Jun +  and fruiting Aug–Sep. +
[1-]2[-4]-carpellate +
Pl. Pratten. Calif., +
connate +  and distinct +
0.01 cm0.1 mm <br />1.0e-4 m <br /> (0.05 cm0.5 mm <br />5.0e-4 m <br />) +
Illustrated +  and Endemic +
free +  and distinct +
pointed +  and slightly rounded +
0.8 cm8 mm <br />0.008 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
fusiform +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
Cornus sessilis +
Cornus subg. Cornus +
species +
deciduous +  and perennial +
tree +  and shrub +