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lobed-leaf stingbush

desert bush nettle, desert rock nettle, desert stingbush

Habit Subshrubs, moundlike to spindle-shaped (wider than tall), branches decumbent. Subshrubs, moundlike (wider than tall).
Leaves

blade lobed.

blade usually unlobed, sometimes inconspicuously lobed.

Pedicels

(fruiting) to 10 cm, recurved.

(fruiting) less than 3 cm, usually curved to nodding.

Flowers

radially symmetric or slightly bilaterally symmetric through orientation of style;

corolla rotate, petals connate 3 mm, 1-colored, yellow, spatulate, to 40 mm;

stamens 50–120, inserted at base of corolla, exserted, spreading away from style;

filaments 7–16 mm, longer than anthers.

radially symmetric;

corolla funnelform, petals connate 5 mm, 1-colored, white to cream, spatulate, to 45 mm;

stamens 50+, inserted at base of corolla, included, most aggregated around style, only longer, outermost stamens spreading away from style, filaments 10–20 mm, longer than anthers.

2n

= 42.

= 42.

Eucnide lobata

Eucnide urens

Phenology Flowering Mar–Dec. Flowering Mar–Jul.
Habitat Steep rocky hills of gypsum. Clefts in cliffs, rocky slopes, wash margins, limestone, desert scrub.
Elevation 50 m. (200 ft.) -50–2000 m. (-200–6600 ft.)
Distribution
from FNA
TX; ne Mexico; c Mexico
[BONAP county map]
from FNA
AZ; CA; NV; UT; Mexico (Baja California)
[WildflowerSearch map]
[BONAP county map]
Discussion

Eucnide lobata is known in the flora area from Starr County.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Eucnide urens is found primarily in the Mojave Desert but extends into surrounding areas. Asydates inyoensis, soft-wing flower beetles of the family Melyridae, have been found in flowers of E. urens; they collect pollen on dorsal setae and likely serve as pollinators.

(Discussion copyrighted by Flora of North America; reprinted with permission.)

Source FNA vol. 12, p. 495. FNA vol. 12, p. 496.
Parent taxa Loasaceae > Eucnide Loasaceae > Eucnide
Sibling taxa
E. bartonioides, E. rupestris, E. urens
E. bartonioides, E. lobata, E. rupestris
Synonyms Microsperma lobatum, M. grandiflorum Mentzelia urens
Name authority (Hooker) A. Gray: Boston J. Nat. Hist. 6: 192. (1857) Parry: Amer. Naturalist 9: 144. (1875)
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