Ribes laxiflorum

Pursh

Fl. Amer. Sept. 2: 731. 1813 ,.

Common names: Trailing black or spreading currant
Synonyms: Ribes coloradense Coville
Treatment appears in FNA Volume 8. Treatment on page 24. Mentioned on page 11, 25.

Plants 0.5–1 m (in shade sometimes semiscandent and to 7 m). Stems decumbent, vining, or spreading, finely crisped-puberulent, sparsely subsessile-glandular; spines at nodes absent; prickles on internodes absent. Leaves: petiole (1.5–) 2.5–5.5 (–8) cm, pubescent, stipitate-glandular; blade orbiculate, 5–7-lobed, cleft nearly 1/2 to midrib, (2.5–) 4–12 cm, base deeply cordate, surfaces ± crisped-puberulent at least on veins, usually with some sessile, crystalline glands and more numerous, very short-stipitate, noncrystalline glands abaxially, glabrous adaxially, lobes ovate-triangular, margins shallowly to coarsely 2 times crenate-serrate, apex acute to obtuse. Inflorescences erect or ascending, 6–8-flowered racemes, (2–) 3–6 (–8) cm, axis stipitate-glandular, flowers evenly spaced. Pedicels jointed, (2.2–) 3.2–12 mm, pubescent, red stipitate-glandular; bracts linear to lanceolate-subulate, 0.9–2.8 (–3.6) mm, copiously crisped-puberulent, moderately reddish stipitate-glandular. Flowers: hypanthium greenish white with pinkish tinge to red or purple, shallowly bowl-shaped, 0.6–1 mm, pubescent and stipitate-glandular abaxially, glabrous adaxially; sepals not overlapping, spreading, tips usually slightly recurved, greenish white to deep red or purplish, deltate-ovate to oblong-ovate, 2.4–4 mm; petals widely separated, erect, pinkish to reddish or purplish, greenish at apex, reniform or crescent-shaped, not conspicuously revolute or inrolled, 0.9–1.6 mm; nectary disc prominent, cream, reddish, or brownish, flat, 5-lobed, covering ovary; stamens nearly as long as to slightly longer than petals; filaments linear, 1–1.7 mm, glabrous; anthers cream, oval, 0.5–0.7 mm, apex blunt; ovary finely puberulent, prominently reddish stipitate-glandular, (glandular-hairs to 0.5 mm); styles connate 1/3–2/3 their lengths, 1.4–1.8 mm, glabrous. Berries palatable, purplish black, ovoid, (4–) 5–10 (–14) mm, pubescent, reddish purple stipitate-glandular.


Phenology: Flowering Mar–Aug.
Habitat: Moist woods, stream banks, forest edges, clearings, avalanche tracks
Elevation: 0-2600 m

Distribution

V8 36-distribution-map.gif

Alta., B.C., Yukon, Alaska, Calif., Colo., Idaho, Mont., N.Mex., Oreg., Utah, Wash., Asia (Siberia)

Discussion

Ribes laxiflorum flowers have stamens with reddish filaments.

Selected References

None.

Lower Taxa

None.
... more about "Ribes laxiflorum"
0.05 cm0.5 mm <br />5.0e-4 m <br /> (?) +  and 0.07 cm0.7 mm <br />7.0e-4 m <br /> (?) +
Nancy R. Morin +
stipitate-glandular +
cordate +
1 cm10 mm <br />0.01 m <br /> (1.4 cm14 mm <br />0.014 m <br />) +
reddish purple +  and purplish black +
stipitate-glandular +  and pubescent +
0.5 cm5 mm <br />0.005 m <br /> (1 cm10 mm <br />0.01 m <br />) +
2.5 cm25 mm <br />0.025 m <br /> (4 cm40 mm <br />0.04 m <br />) +
5-7-lobed;orbiculate +
4 cm40 mm <br />0.04 m <br /> (12 cm120 mm <br />0.12 m <br />) +
0.28 cm2.8 mm <br />0.0028 m <br /> (0.36 cm3.6 mm <br />0.0036 m <br />) +
persistent +
stipitate-glandular +  and crisped-puberulent +
linear +  and lanceolate-subulate +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.28 cm2.8 mm <br />0.0028 m <br />) +
Trailing black or spreading currant +
Alta. +, B.C. +, Yukon +, Alaska +, Calif. +, Colo. +, Idaho +, Mont. +, N.Mex. +, Oreg. +, Utah +, Wash. +  and Asia (Siberia) +
0-2600 m +
not starchy +
0.1 cm1 mm <br />0.001 m <br /> (0.17 cm1.7 mm <br />0.0017 m <br />) +
Moist woods, stream banks, forest edges, clearings, avalanche tracks +
greenish white with pinkish tinge +  and red or purple +
free +  and adnate +
glabrous +, stipitate-glandular +  and pubescent +
bowl--shaped +
0.06 cm0.6 mm <br />6.0e-4 m <br /> (0.1 cm1 mm <br />0.001 m <br />) +
ascending +  and erect +
axillary +  and terminal +
triangular +  and pentangular +
ovate-triangular +
acute +  and obtuse +
2 times crenate-serrate apex +
brownish +, reddish +  and cream +
stipitate-glandular +  and puberulent +
crassinucellate +  and bitegmic +
0.22 cm2.2 mm <br />0.0022 m <br /> (0.32 cm3.2 mm <br />0.0032 m <br />) +
stipitate-glandular +  and pubescent +
0.32 cm3.2 mm <br />0.0032 m <br /> (1.2 cm12 mm <br />0.012 m <br />) +
greenish +, pinkish +  and reddish or purplish +
distinct +
crescent--shaped +  and reniform +
inrolled +  and revolute +
0.09 cm0.9 mm <br />9.0e-4 m <br /> (0.16 cm1.6 mm <br />0.0016 m <br />) +
5.5 cm55 mm <br />0.055 m <br /> (8 cm80 mm <br />0.08 m <br />) +
stipitate-glandular +  and pubescent +
2.5 cm25 mm <br />0.025 m <br /> (5.5 cm55 mm <br />0.055 m <br />) +
Flowering Mar–Aug. +
tubular +, campanulate +, cup-shaped +  and saucer--shaped +
Fl. Amer. Sept. +
6 cm60 mm <br />0.06 m <br /> (8 cm80 mm <br />0.08 m <br />) +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
brown;black +
fusiform;oblong-ellipsoid or ellipsoid +
not overlapping +
purple +, red +, pink +, yellow +, white +  and greenish +
distinct +, adnate +  and free +
antisepalous +
crisped-puberulent +
differentiated +
1/3 +  and 2/3 +
0.14 cm1.4 mm <br />0.0014 m <br /> (?) +  and 0.18 cm1.8 mm <br />0.0018 m <br /> (?) +
short-stipitate +
crisped-puberulent +
Ribes coloradense +
Ribes laxiflorum +
species +
greenish white;deep red or purplish +
deltate-ovate;oblong-ovate +
0.24 cm2.4 mm <br />0.0024 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +