Flora of North America species comparison

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Chamaesaracha coniodes

Chamaesaracha crenata

gray false nightshade, gray five eyes

tooth five eyes
Herbage

pubescent, viscid, hairs simple, dendritic in some populations, especially in s Texas, eglandular and glandular.

pubescent, viscid, hairs simple, long and eglandular intermixed with shorter glandular.
Stems

decumbent to ± prostrate, pale green, 1–3 dm.

decumbent, pale green, (1.5–)3–4 dm.
Leaves

subsessile;

blade linear-lanceolate or oblanceolate to rhombic, 2–6 × 0.5–2 cm, length 3–4 times width, margins shallowly to deeply lobed (occasionally only a few shallow lobes).

petiole 1/3 total leaf length;

blade ovate to broadly rhombic, 4–6 × 1.5–3.5 cm, length 2–2.5 times width, margins crenate or sinuate.
Inflorescences

1–5-flowered.

1–5-flowered.
Flowers

calyx 4–5 mm, densely pubescent, hairs mostly relatively long;

corolla 5–15 mm diam.

calyx 5–7 mm, densely pubescent, hairs mostly relatively long;

corolla 5–15 mm diam.
Berries

8–10 mm diam. 2n = 48.

8–10 mm diam. 2n = 24.

Chamaesaracha coniodes

Chamaesaracha crenata
Phenology Flowering Mar–Oct (mostly late spring–early sum­mer, depending on rain). Flowering Mar–Oct (mostly late spring–early summer, depending on rain).
Habitat Deserts, grasslands. Deserts, dry grasslands, frequently on roadsides or dry desert washes.
Elevation 0–2000 m. (0–6600 ft.) 500–900 m. (1600–3000 ft.)
Distribution
from FNA
CO; KS; NM; OK; TX; Mexico (Chihuahua, Coahuila, Nuevo León, Tamaulipas)
[WildflowerSearch map]
from FNA
TX; Mexico (Coahuila)
Discussion

Chamaesaracha coniodes is highly variable in leaf shape, vestiture, and stature. It is similar to C. darcyi and C. coronopus. Some populations are similar to C. sordida. The variation and its significance were discussed by J. E. Averett (2010b). J. Henrickson (2009) recognized C. texensis, which has simple hairs and may also have an understory of glandular hairs, as distinct from the type of C. coniodes, which has only dendritic hairs; this is part of the variability across the range of the species.

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

Chamaesaracha crenata occurs primarily in the Big Bend region of Texas and adjacent Coahuila, Mexico. Plants are robust, forming dense mounds. J. Henrickson (2009) included C. crenata within C. villosa. The two species are very similar; populations in and around Big Bend National Park compare more closely to the type of C. crenata.

(Discussion copyrighted by Flora of North America; reprinted with permission.)
Source FNA vol. 14. FNA vol. 14.
Parent taxa Solanaceae > Chamaesaracha Solanaceae > Chamaesaracha
Sibling taxa
C. coronopus, C. crenata, C. darcyi, C. edwardsiana, C. pallida, C. sordida, C. villosa
C. coniodes, C. coronopus, C. darcyi, C. edwardsiana, C. pallida, C. sordida, C. villosa
Synonyms Solanum coniodes, C. texensis
Name authority (Moricand ex Dunal) Bentham & Hooker f. ex B. D. Jackson in B. D. Jackson et al.: Index Kew. 1(1): 505. (1893) Rydberg: Mem. Torrey Bot. Club 4: 368. (1896) — (as Camaesaracha)
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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