Jepson eFlora: Taxon page
Vascular Plants of California
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Eucnide rupestris
ANNUAL ROCK-NETTLE


Higher Taxonomy
Family: LoasaceaeView DescriptionDichotomous Key
Common Name: LOASA FAMILY
Habit: Annual to subshrub; hairs needle-like, barbed, occasionally stinging. Leaf: alternate [opposite], generally +- pinnate-lobed; stipules 0. Inflorescence: cyme, raceme. Flower: bisexual, radial; sepals generally 5, generally persistent; petals generally 5, free or fused to each other or filament tube; stamens 5--many, filaments thread-like to flat, occasionally fused at base or in clusters; petal-like staminodes occasionally present; pistil 1, ovary inferior, chamber generally 1, placentas generally 3, parietal, style 1. Fruit: capsule or achene. Seed: 1--many.
Genera In Family: 18+ genera, 250 species: especially America (Africa, Pacific).
eFlora Treatment Author: Larry Hufford & Barry Prigge, except as noted
Scientific Editor: Douglas H. Goldman, Bruce G. Baldwin.
Genus: EucnideView DescriptionDichotomous Key


Common Name: ROCK-NETTLE
Habit: Annual or subshrub; hairs needle-like, stinging, barbed. Leaf: widely ovate to +- round, toothed to +- lobed; base widely tapered to cordate. Inflorescence: cyme, bracted. Flower: petals fused at least at base; stamens epipetalous or fused at base into a short tube; ovary funnel-shaped to hemispheric, placentas 5, stigma lobes 5, generally appressed. Fruit: obovoid to spheric, nodding or reflexed, dehiscent at top by 5 valves. Seed: many, < 1 mm, +- oblong, grooved or ribbed.
Etymology: (Greek: strongly nettle-like)
eFlora Treatment Author: Larry Hufford & Barry Prigge
Eucnide rupestris (Baill.) H.J. Thomps. & W.R. Ernst
NATIVE
Habit: Plant < 30 cm. Leaf: petiole < 6 cm; blade 1--8 cm, generally round, widely tapered to cordate, toothed to weakly lobed, shiny-green above. Flower: sepals 3.5--7 mm, 2--3 mm wide, tip obtuse; corolla tube narrow-cylindric with ring of hairs at base, lobes erect; stigma below most anthers. Fruit: 7--15 mm, cylindric; pedicel < 2 cm, reflexed.
Ecology: Crevices, cliffs; Elevation: 180--450 m. Bioregional Distribution: s DSon (se San Diego Co., sw Imperial Co.); Distribution Outside California: Arizona, northern Mexico (including islands). Flowering Time: Dec--Apr
Synonyms: Sympetaleia rupestris (Baill.) A. Gray ex S. Watson
Jepson eFlora Author: Larry Hufford & Barry Prigge
Index of California Plant Names (ICPN; linked via the Jepson Online Interchange)
Listed on CNPS Rare Plant Inventory

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Citation for this treatment: Larry Hufford & Barry Prigge 2012, Eucnide rupestris, in Jepson Flora Project (eds.) Jepson eFlora, https://ucjeps.berkeley.edu/eflora/eflora_display.php?tid=25302, accessed on April 18, 2024.

Citation for the whole project: Jepson Flora Project (eds.) 2024, Jepson eFlora, https://ucjeps.berkeley.edu/eflora/, accessed on April 18, 2024.

Eucnide rupestris
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©2018 Aaron Schusteff
Eucnide rupestris
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©2005 Dieter Wilken
Eucnide rupestris
click for enlargement
©2018 Aaron Schusteff
Eucnide rupestris
click for enlargement
©2018 Aaron Schusteff
Eucnide rupestris
click for enlargement
©2018 Aaron Schusteff

More photos of Eucnide rupestris
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Geographic subdivisions for Eucnide rupestris:
s DSon (se San Diego Co., sw Imperial Co.)
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map of distribution 1
(Note: any qualifiers in the taxon distribution description, such as 'northern', 'southern', 'adjacent' etc., are not reflected in the map above, and in some cases indication of a taxon in a subdivision is based on a single collection or author-verified occurence).





 

Data provided by the participants of the  Consortium of California Herbaria.
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All markers link to CCH specimen records. The original determination is shown in the popup window.
Blue markers indicate specimens that map to one of the expected Jepson geographic subdivisions (see left map). Purple markers indicate specimens collected from a garden, greenhouse, or other non-wild location.
Yellow markers indicate records that may provide evidence for eFlora range revision or may have georeferencing or identification issues.
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CCH collections by month

Duplicates counted once; synonyms included.
Species do not include records of infraspecific taxa, if there are more than 1 infraspecific taxon in CA.
Blue line denotes eFlora flowering time (fruiting time in some monocot genera).