Prosopis strombulifera
Prosopis glandulosa
Argentine screwbean
honey mesquite
glabrate to sparsely velutinous.
arching, shrubby form with flexuous branches.
stipules nodal, solitary or paired, yellowish green, 1–4.5 cm, glabrous;
petiole/rachis 1–15 cm;
pinnae 2 or 4;
leaflets 12–48, opposite, 5–18 mm apart, blades linear to oblong or falcate, (15–)20–63 × 1.4–4.5 mm, usually 5–15 times longer than wide, base cuneate, margins sparsely ciliate, veins prominent, apex obtuse or mucronate, surfaces glabrous.
amentlike spikes, ascending or drooping, 5–14 cm.
(0.8–)1–3 cm, glabrous.
sepals 1 mm, glabrous;
petals connate proximally, cream-yellow, 2.5–3.5 mm, adaxially lanulose;
stamens cream-yellow;
filaments 6–7 mm, glabrous;
anthers 1 mm;
ovary stipitate, 2 mm, villous;
style 4 mm, glabrous.
yellow-tan, broadly ellipsoid, 4–5 mm.
ruiziana Burkart (found in Argentina) has fruits to 2 cm longer than var. strombulifera;
plants produce only one or two fruits per inflorescence.
pale yellow to tan or tinged with violet, compressed to nearly cylindric, usually straight, rarely subfalcate, 8–20 × 0.7–1.3 cm, glabrous.
Prosopis strombulifera
Prosopis glandulosa
Varieties 2 (1 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
Varieties 3 (3 in the flora).
(Discussion copyrighted by Flora of North America; reprinted with permission.)
1. Shrubs, usually prostrate, rarely erect. | var. prostrata |
1. Trees or shrubs, erect. | → 2 |
2. Leaflets 12–34, blades 20–60 mm, apices obtuse; spines usually solitary. | var. glandulosa |
2. Leaflets 16–48, blades 15–25 mm, apices mucronate; spines usually paired. | var. torreyana |
CA
WildflowerSearch
iNaturalist
USDA Plants Database
