familyBerberidaceae
genusBerberis
speciesBerberis trifoliolata

Berberis trifoliolata

Moricand

Pl. Nouv. Amér., 113. 1841.

Alan T. Whittemore
Common names: Algerita agarito currant-of-Texas agritos
Illustrated
Synonyms: Mahonia trifoliolata (Moricand) Fedde
Treatment appears in FNA Volume 3.
Please click on the illustration for a higher resolution version.
Illustrator: John Myers

Copyright: Flora of North America Association

Shrubs, evergreen, 1-3.5 m. Stems ± dimorphic, with elongate primary and short axillary shoots. Bark of 2d-year stems gray or grayish purple, glabrous. Bud-scales 2-3 mm, deciduous. Spines absent. Leaves 3-foliolate; petioles 0.8-5.4 cm. Leaflet blades thick and rigid; surfaces abaxially dull, papillose, adaxially dull, ± glaucous; terminal leaflet sessile, blade 2.3-5.8 × 0.9-2 cm, 1.6-3.1 times as long as wide; lateral leaflet blades narrowly lanceolate or narrowly elliptic, 1-veined from base, base acute or acuminate, rarely rounded-acute, margins plane, toothed or lobed, with 1-3 teeth or lobes 3-7 mm high tipped with spines to 1-2 × 0.2-0.3 mm, apex narrowly acute or acuminate. Inflorescences racemose, lax, 1-8-flowered, 0.5-3 cm; bracteoles membranous, apex acuminate. Flowers: anther-filaments without distal pair of recurved lateral teeth. Berries red, sometimes glaucous, spheric, 6-11 mm, juicy, solid.


Phenology: Flowering winter–spring (Feb–Apr).
Habitat: Slopes and flats in grassland, shrubland, and sometimes open woodland
Elevation: 0-2000 m

Distribution

V3 1055-distribution-map.gif

Ariz., N.Mex., Tex., n Mexico

Discussion

The illegitimate name Berberis trifoliolata Moricand var. glauca (I. M. Johnston) M. C. Johnston has been used for plants with very strongly glaucous leaves. Weakly and strongly glaucous plants are often found in the same population, however, indicating that they are not distinct varieties.

Berberis trifoliolata is susceptible to infection by Puccinia graminis.

Selected References

None.

Lower Taxa

None.

"thick" is not a number.

... more about "Berberis trifoliolata"
RDF feed
Anther dehiscence
dehiscing +
Apex shape
acuminate;acuminate;acute +
Aril presence
absent +
Articulation shape
swollen +
Author
Alan T. Whittemore +
Authority
Moricand +
Bark coloration
grayish purple +  and gray +
Bark pubescence
glabrous +
Base shape
rounded-acute;acuminate;acute +
Basionyms
Mahonia +
Berry architecture
solid +
Berry coloration
red +
Berry pubescence
glaucous +
Berry shape
spheric +
Berry some measurement
0.6 cm6 mm <br />0.006 m <br /> (1.1 cm11 mm <br />0.011 m <br />) +
Berry texture
juicy +
Blade l w ratio
1.6-3.1 +
Blade length
2.3 cm23 mm <br />0.023 m <br /> (5.8 cm58 mm <br />0.058 m <br />) +
Blade shape
obovate +, oblanceolate +  and elliptic +
Blade some measurement
1.2 cm12 mm <br />0.012 m <br /> (7.5 cm75 mm <br />0.075 m <br />) +
Blade width
0.9 cm9 mm <br />0.009 m <br /> (2 cm20 mm <br />0.02 m <br />) +
Bracteole architecture
sepaloid +
Bracteole duration
caducous +
Bracteole quantity
3 +
Bracteole shape
scale-like +
Bracteole texture
membranous +
Bud-scale distance
0.2 cm2 mm <br />0.002 m <br /> (0.3 cm3 mm <br />0.003 m <br />) +
Bud-scale duration
deciduous +
Common name
Algerita +, agarito +, currant-of-Texas +  and agritos +
Distribution
Ariz. +, N.Mex. +, Tex. +  and n Mexico +
Elevation
0-2000 m +
Embryo size
small +  and large +
Endosperm quantity
abundant +
Flower architecture
3-merous +
Flower architecture or arrangement or growth form
solitary +
Flower architecture or shape
symmetric +
Flower prominence
showy +  and inconspicuous +
Flower reproduction
bisexual +
Flower some measurement
0.3 cm3 mm <br />0.003 m <br /> (?) +  and 0.8 cm8 mm <br />0.008 m <br /> (?) +
Foliage leaf architecture
compound +  and simple +
Fruits berry condition or texture
dry +
Fruits berry shape
spheric +  and cylindric-ovoid or ellipsoid +
Fruits berry texture
juicy +
Habitat
Slopes and flats in grassland, shrubland, and sometimes open woodland +
Illustration
Present +
Illustration copyright
Flora of North America Association +
Illustrator
John Myers +
Inflorescence architecture
1-8-flowered +
Inflorescence architecture or arrangement
lax +
Inflorescence arrangement
racemose +
Inflorescence position
axillary +  and terminal +
Inflorescence position or structure subtype
terminal +
Inflorescence some measurement
0.5 cm5 mm <br />0.005 m <br /> (3 cm30 mm <br />0.03 m <br />) +
Lateral tooth orientation
recurved +
Leaf architecture
3-foliolate +
Leaf architecture or arrangement
fascicled +
Leaf architecture or shape
pinnate +
Leaf arrangement
alternate +
Leaf size
reduced +
Leaflet architecture
3-6-veined +
Leaflet blade architecture
1-veined +
Leaflet blade shape
Elliptic (Lanceolate) +
Leaflet blade texture
rigid +
Lobe height
0.3 cm3 mm <br />0.003 m <br /> (0.7 cm7 mm <br />0.007 m <br />) +
Margin architecture
tipped +
Margin shape
lobed;toothed;plane +
Nectary presence
absent +
Number of lower taxa
0 +
Ovary architecture
1-carpellate +
Ovary placentation
subbasal +
Ovary position
basal +  and superior +
Ovary shape
club--shaped +
Perianth architecture
3-merous +  and 2-merous +
Perianth presence
absent +
Petal architecture
hooded +
Petal coloration
yellow +
Petal function
nectariferous +
Petal fusion
distinct +
Petal quantity
6 +
Petal shape
plane +
Petiole presence
absent +
Petiole some measurement
0.8 cm8 mm <br />0.008 m <br /> (5.4 cm54 mm <br />0.054 m <br />) +
Phenology
Flowering winter–spring (Feb–Apr). +
Pollen exine coloration or relief
punctate +
Primary-stem shape
elongate +
Primary and axillary shoot height or length or size
short +
Primary and axillary shoot shape
elongate +
Publication title
Pl. Nouv. Amér., +
Publication year
1841 +
Reference
None +
Rhizome height or length or size
short +
Rhizome length or size
long +
Rhizome presence
absent +
Rhizome shape
not nodose +
Seed architecture
arillate +
Seed coloration
tan +  and redbrown or black +
Seed life cycle
mature +
Seed prominence
elevated +
Seed quantity
1 +  and 10 +
Sepal coloration
yellow +
Sepal fusion
distinct +
Sepal life cycle
falling +
Sepal quantity
6 +
Shoot shape
elongate +
Slit dehiscence or orientation
longitudinal +
Source xml
https://bibilujan@bitbucket.org/aafc-mbb/fna-fine-grained-xml.git/src/84153f6d59a0a91d69695978a64cee7560374f8e/V3/V3 1055.xml +
Special status
Illustrated +
Spine length
1mm;2mm +
Spine presence
absent +
Spine width
0.02 cm0.2 mm <br />2.0e-4 m <br /> (0.03 cm0.3 mm <br />3.0e-4 m <br />) +
Spur shoot height or length or size
short +
Spur shoot shape
elongate +
Stalk length
elongating +
Stamen quantity
6 +
Stem architecture
monomorphic +, unbranched +  and branched +
Stem growth form
dimorphic +
Stem pubescence
tomentose +
Stem shape
with elongate primary-stems and short axillary spur shoots +  and elongate +
Stipitate-gland presence
absent +
Stipule architecture
palmate +  and pinnate +
Stipule presence
absent +
Style duration
persistent +
Style position
central +
Style presence
absent +
Surface pubescence
glaucous +
Surface reflectance
dull +
Surface relief
papillose +
Synonyms
Mahonia trifoliolata +
Taxon family
Berberidaceae +
Taxon name
Berberis trifoliolata +
Taxon parent
Berberis +
Taxon rank
species +
Terminal leaflet architecture
sessile +
Tooth quantity
1 (3) +
Umbel architecture or arrangement or growth form
solitary +
Volume
Volume 3 +
Whole-organism architecture or shape
not spurred +
Whole organism architecture
rhizomatous +
Whole organism atypical some measurement
450 cm4,500 mm <br />4.5 m <br /> (800 cm8,000 mm <br />8 m <br />) +
Whole organism duration
evergreen +
Whole organism growth form
shrub +
Whole organism pubescence
glabrous +  and with tomentose stems +
Whole organism some measurement
1m (3.5m) +
X chromosome quantity
14 +