Flora of North America species comparison

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Eucnide bartonioides

Eucnide lobata

yellow rocknettle, yellow stingbush

lobed-leaf stingbush
Habit Herbs or subshrubs, annual or perennial, moundlike to spindle-shaped (wider than tall). Subshrubs, moundlike to spindle-shaped (wider than tall), branches decumbent.
Leaves

blade shallowly to prominently lobed.

blade lobed.
Pedicels

(fruiting) 3–35+ cm, frequently recurved.

(fruiting) to 10 cm, recurved.
Flowers

radially symmetric or slightly bilaterally symmetric through upward curvature of stamen filaments;

corolla funnelform, petals connate to 3 mm, 1-colored, yellow, spatulate, 10–55[–58] mm;

stamens 15–150+, inserted at base of corolla, exserted, spreading away from style;

filaments 13–60 mm, longer than anthers.

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.
2n

= 42.

Eucnide bartonioides

Eucnide lobata
Phenology Flowering Mar–Dec.
Habitat Steep rocky hills of gypsum.
Elevation 50 m. (200 ft.)
Distribution
from FNA
TX; n Mexico
[WildflowerSearch map]
[BONAP county map]
from FNA
TX; ne Mexico; c Mexico
[BONAP county map]
Discussion

Varieties 2 (2 in the flora).

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

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

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Key
1. Petals 30–55 mm; stamens (55–)70–150+, filaments 30–60 mm.
var. bartonioides
1. Petals 10–25 mm; stamens 15–70, filaments 13–30(–35) mm.
var. edwardsiana
Source FNA vol. 12, p. 495. FNA vol. 12, p. 495.
Parent taxa Loasaceae > Eucnide Loasaceae > Eucnide
Sibling taxa
E. lobata, E. rupestris, E. urens
E. bartonioides, E. rupestris, E. urens
Subordinate taxa
E. bartonioides var. bartonioides, E. bartonioides var. edwardsiana
Synonyms Microsperma lobatum, M. grandiflorum
Name authority Zuccarini: Index Seminum (München) 1844: [4]. (1844) (Hooker) A. Gray: Boston J. Nat. Hist. 6: 192. (1857)
Web links 
Unless otherwise noted, all data comes from the online version of the Flora of North America, who have made most of their content available via a Creative Commons license (CC BY 4.0).



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