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Catalina nightshade, greasy or Santa Catalina or Wallace's nightshade, northern island nightshade, Wallace's nightshade

Habit Shrubs or small trees, erect to spreading, unarmed, 1–1.5(–3) m, densely pubescent, hairs transparent, unbranched, to ca. 3 mm, usually glandular.
Leaves

petiolate;

petiole 1–2.5(–4) cm;

blade simple, elliptic to obovate, 3–11(–14) × 1.6–5.5(–9) cm, margins entire or slightly undulate, occasionally with 2 small lobes at base, lobe margins entire, base truncate or acute.

Inflorescences

terminal or lateral, leaf-opposed or extra-axillary, usually once-branched, occasionally more, 20–30-flowered, (2–)4–10 cm.

Pedicels

inserted into small sleeve on inflorescence axis, 1.5–2 cm in flower and fruit.

Flowers

radially symmetric;

calyx not accrescent, unarmed, 6–7 mm, densely pubescent, lobes deltate;

corolla violet to purple with or without green spots at base of lobes, spots usually small and not confluent, rotate, 3–4.5 cm diam., with abundant interpetalar tissue;

stamens equal;

anthers ellipsoidal, 4.5–5 mm, dehiscent by terminal pores that open into longitudinal slits;

ovary glabrous.

Berries

shiny green, turning yellow then black, globose, 3–4 cm diam., glabrous, without sclerotic granules.

Seeds

reddish brown, plump to flattened, 1.5–2 × 1–1.5 mm, minutely pitted.

Solanum wallacei

Phenology Flowering Mar–Aug.
Habitat Chaparral, open areas, canyon bottoms.
Elevation 0–300 m. (0–1000 ft.)
Distribution
from FNA
CA
[WildflowerSearch map]
[BONAP county map]
Discussion

Solanum wallacei is endemic to Santa Catalina Island.

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

Source FNA vol. 14.
Parent taxa Solanaceae > Solanum
Sibling taxa
S. americanum, S. aviculare, S. bahamense, S. campechiense, S. capsicoides, S. carolinense, S. chenopodioides, S. citrullifolium, S. cordicitum, S. davisense, S. deflexum, S. dimidiatum, S. diphyllum, S. donianum, S. douglasii, S. dulcamara, S. elaeagnifolium, S. emulans, S. erianthum, S. furcatum, S. hindsianum, S. interius, S. jamaicense, S. jamesii, S. laciniatum, S. lanceolatum, S. lumholtzianum, S. lycopersicum, S. marginatum, S. mauritianum, S. nigrescens, S. nigrum, S. nitidibaccatum, S. novomexicanum, S. perplexum, S. pseudocapsicum, S. pseudogracile, S. pumilum, S. rostratum, S. sarrachoides, S. seaforthianum, S. setigeroides, S. sisymbriifolium, S. stoloniferum, S. tampicense, S. tenuipes, S. torvum, S. triflorum, S. triquetrum, S. umbelliferum, S. viarum
Synonyms S. xanti var. wallacei, S. umbelliferum var. wallacei
Name authority (A. Gray) Parish: Proc. Calif. Acad. Sci., ser. 3, 2: 166. (1901)
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