Berberis haematocarpa

Wooton

Bull. Torrey Bot. Club 25: 304. 1898.

Common names: Algerita
Illustrated
Synonyms: Berberis nevinii var. haematocarpa (Wooton) L. D. Benson Mahonia haematocarpa (Wooton) Fedde
Treatment appears in FNA Volume 3.

Shrubs, evergreen, 1-4 m. Stems ± dimorphic, with elongate primary and short or somewhat elongate axillary shoots. Bark of 2d-year stems grayish purple, glabrous. Bud-scales 2-4 mm, deciduous. Spines absent. Leaves 3-9-foliolate; petioles 0.1-0.5 cm. Leaflet blades thick and rigid; surfaces abaxially dull, papillose, adaxially dull, glaucous; terminal leaflet stalked in most leaves, blade 1.5-3.8 × 0.5-1.1 cm, 2-5 times as long as wide; lateral leaflet blades oblong-ovate to ovate or lanceolate, 1 (-3) -veined from base, base acute to obtuse, rarely subtruncate, margins undulate or crispate, toothed or lobed, with 2-4 teeth 1-4 mm high tipped with spines to 1.2-2 × 0.2-0.3 mm, apex narrowly acute or acuminate. Inflorescences racemose, lax, 3-7-flowered, 1.5–4.5 cm; bracteoles membranous, apex acuminate. Flowers: anther-filaments without distal pair of recurved lateral teeth. Berries purplish red, glaucous, spheric or short-ellipsoid, 5-8 mm, juicy, solid.


Phenology: Flowering winter–spring (Feb–Jun).
Habitat: Slopes and flats in desert shrubland, desert grassland, and dry oak woodland
Elevation: 900-2300 m

Distribution

V3 544-distribution-map.gif

Ariz., Calif., Colo., Nev., N.Mex., Tex., Mexico (Sonora)

Discussion

Typical populations of Berberis haematocarpa (with narrowly ovate or lanceolate leaflets and small, juicy, deep red berries) and B. fremontii (with ovate or orbiculate leaflets and large, dry, inflated, yellowish or brownish berries) are easily distinguished. These characteristics are not always well correlated, however, and intermediate populations, showing different combinations of leaflet shape and berry size, color, and inflation, are known.

Berberis haematocarpa is susceptible to infection by Puccinia graminis.

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

... more about "Berberis haematocarpa"
acuminate;acuminate;acute +
Alan T. Whittemore +
Wooton +
grayish purple +
acute;obtuse +
Mahonia +
purplish red +
short-ellipsoid +  and spheric +
0.5 cm5 mm <br />0.005 m <br /> (0.8 cm8 mm <br />0.008 m <br />) +
1.5 cm15 mm <br />0.015 m <br /> (3.8 cm38 mm <br />0.038 m <br />) +
obovate +, oblanceolate +  and elliptic +
1.2 cm12 mm <br />0.012 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
0.5 cm5 mm <br />0.005 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
scale-like +
0.2 cm2 mm <br />0.002 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
Algerita +
Ariz. +, Calif. +, Colo. +, Nev. +, N.Mex. +, Tex. +  and Mexico (Sonora) +
900-2300 m +
small +  and large +
showy +  and inconspicuous +
0.3 cm3 mm <br />0.003 m <br /> (?) +  and 0.8 cm8 mm <br />0.008 m <br /> (?) +
compound +  and simple +
spheric +  and cylindric-ovoid or ellipsoid +
Slopes and flats in desert shrubland, desert grassland, and dry oak woodland +
axillary +  and terminal +
1.5 cm15 mm <br />0.015 m <br /> (4.5 cm45 mm <br />0.045 m <br />) +
3-9-foliolate +
reduced +
lobed;toothed;crispate;undulate;lobed;toothed;crispate;undulate +
1-carpellate +
basal +  and superior +
club--shaped +
3-merous +  and 2-merous +
nectariferous +
distinct +
0.1 cm1 mm <br />0.001 m <br /> (0.5 cm5 mm <br />0.005 m <br />) +
Flowering winter–spring (Feb–Jun). +
Bull. Torrey Bot. Club +
not nodose +
tan +  and redbrown or black +
1 +  and 10 +
distinct +
elongate +
Illustrated +
1.2mm;2mm +
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
elongating +
monomorphic +, unbranched +  and branched +
with elongate primary-stems and short axillary spur shoots +  and elongate +
palmate +  and pinnate +
persistent +
papillose +
Berberis nevinii var. haematocarpa +  and Mahonia haematocarpa +
Berberis haematocarpa +
Berberis +
species +
0.1 cm1 mm <br />0.001 m <br /> (0.4 cm4 mm <br />0.004 m <br />) +
450 cm4,500 mm <br />4.5 m <br /> (800 cm8,000 mm <br />8 m <br />) +
glabrous +  and with tomentose stems +