Dicentra chrysantha

(Hooker & Arnott) Walpers

Repert. Bot. Syst. 1: 118. 1842.

Common names: Golden eardrops
Basionym: Dielytra chrysantha Hooker & Arnott Bot. Beechey Voy., 320, plate 73. 1838
Treatment appears in FNA Volume 3.
Revision as of 07:21, 30 July 2020 by imported>Volume Importer
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Plants perennial, caulescent, glaucous, from stout taproots. Stems 1 or more, rigidly erect, 5-15 dm, 1-2.5 cm diam. at base. Leaves (10-) 15-30 (-45) × (3-) 5-9 (-16) cm; blade with 3, rarely 4 orders of leaflets and lobes; ultimate leaflets (10-) 20-30 (-60) × (5-) 10-20 (-25) mm, ultimate lobes oblong, apex acute. Inflorescences paniculate, usually at least 5 times longer than wide; bracts lanceolate to ovate, 3-5 × 1-2 mm, margins entire; bracteoles absent, rarely present. Flowers erect, with slightly pungent odor; pedicels rigid, 2-10 mm; sepals ovate to cordate or nearly round, 3-7 × 2-5 mm; petals golden yellow; outer petals (10-) 12-16 (-22) × 2-4 mm, reflexed portion 4-7 mm; inner petals (8-) 15-17 (-18) mm, blade 3-5 mm, claw 6-9 mm, confluent with and nearly as wide as blade, crest usually about 1-3 mm diam., scarcely exceeding apex; filaments of each bundle connate from base to shortly below anthers, rarely distinct from near base; nectariferous tissue borne at base of median filament, not projecting into outer petal; stigma shortly 2-horned, ca. 2 times wider than long. Capsules ovoid, attenuate at both ends or sometimes rounded at base, (5-) 15-25 (-32) × 5-8 mm. Seeds slightly reniform, 1.5-2.2 mm diam., densely covered with tiny protuberances, elaiosome absent. 2n = 32. Artificially produced hybrids between Dicentra ochroleuca and D. chrysantha also had 2n = 32.


Phenology: Flowering early spring–late summer.
Habitat: Dry gravelly hillsides, gullies, and disturbed areas, often invading after fire
Elevation: 100-2200 m

Distribution

V3 1050-distribution-map.gif

Calif., Mexico (Baja California)

Discussion

The seeds of Dicentra chrysantha usually do not germinate unless desiccated or seared by fire.

The Kawaiisu applied dried, mashed roots of Dicentra chrysantha to the chest for heart pains (D. E. Moerman 1986).

Selected References

None.

Lower Taxa

None.

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

... more about "Dicentra chrysantha"
Kingsley R. Stern +
(Hooker & Arnott) Walpers +
2.5 cm25 mm <br />0.025 m <br /> (3.2 cm32 mm <br />0.032 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
rounded +
5mm +  and 8mm +
Dielytra chrysantha +
4 +  and 3 +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
0.3 cm3 mm <br />0.003 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
lanceolate;ovate +
0.1 cm1 mm <br />0.001 m <br /> (0.2 cm2 mm <br />0.002 m <br />) +
distinct +  and connate +
dehiscent +  and indehiscent +
attenuate +  and ovoid +
linear-oblong +  and oblanceolate +
0.6 cm6 mm <br />0.006 m <br /> (0.9 cm9 mm <br />0.009 m <br />) +
Golden eardrops +
cordate +  and oblong +
0.1 cm1 mm <br />0.001 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Calif. +  and Mexico (Baja California) +
100-2200 m +
each +  and plane +
dehiscent +  and indehiscent +
Dry gravelly hillsides, gullies, and disturbed areas, often invading after fire +
thyrsoid +, multifloral +, else +  and unifloral +
terminal +, leaf-opposed +, extra-axillary +  and axillary +
1.7 cm17 mm <br />0.017 m <br /> (1.8 cm18 mm <br />0.018 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (1.7 cm17 mm <br />0.017 m <br />) +
30 cm300 mm <br />0.3 m <br /> (45 cm450 mm <br />0.45 m <br />) +
9 cm90 mm <br />0.09 m <br /> (16 cm160 mm <br />0.16 m <br />) +
15 cm150 mm <br />0.15 m <br /> (30 cm300 mm <br />0.3 m <br />) +
cauline +  and basal +
5 cm50 mm <br />0.05 m <br /> (9 cm90 mm <br />0.09 m <br />) +
serrate +, crenate +  and entire +
1.6 cm16 mm <br />0.016 m <br /> (2.2 cm22 mm <br />0.022 m <br />) +
1.2 cm12 mm <br />0.012 m <br /> (1.6 cm16 mm <br />0.016 m <br />) +
3 +, both +  and 1 +
keeled +, spurred +  and swollen +
dissimilar +  and alike +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
obovoid;narrowly cylindric +
0.2 cm2 mm <br />0.002 m <br /> (1 cm10 mm <br />0.01 m <br />) +
golden yellow +
connate +  and coherent +
not spongy +
Flowering early spring–late summer. +
perpendicular +
0.4 cm4 mm <br />0.004 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Repert. Bot. Syst. +
1.5mm +  and 2.2mm +
reniform +
ovate +  and cordate or nearly round +
0.2 cm2 mm <br />0.002 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
hollow +, branching +  and simple +
1 cm10 mm <br />0.01 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
climbing +  and prostrate +
persistent +
2-horned +
thread-like +
glaucous +  and glabrous +
Bikukulla +
Dicentra chrysantha +
Dicentra +
species +
3 cm30 mm <br />0.03 m <br /> (6 cm60 mm <br />0.06 m <br />) +
2 cm20 mm <br />0.02 m <br /> (2.5 cm25 mm <br />0.025 m <br />) +
2 cm20 mm <br />0.02 m <br /> (3 cm30 mm <br />0.03 m <br />) +
1 cm10 mm <br />0.01 m <br /> (2 cm20 mm <br />0.02 m <br />) +