Flora of North America species comparison

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Solanum mauritianum

earleaf nightshade
Habit Shrubs or small trees, erect, unarmed, 2–12 m, densely pubescent, hairs white, sessile to long-stalked, stellate to echinoid.
Leaves

petiolate;

petiole 1–8 cm;

blade simple, elliptic to ovate, 11–31 × 4–14 cm, margins entire, base acute, often with smaller axillary leaves.
Inflorescences

terminal, becoming leaf-opposed, much-branched, 50–100-flowered, 5–24 cm.
Pedicels

erect and 0.2–0.5 cm in flower and fruit.
Flowers

radially symmetric;

calyx slightly accrescent, unarmed, 4–7.5 mm, densely pubescent, lobes deltate;

corolla purple, stellate-pentagonal, 1–1.5 cm diam., with abundant interpetalar tissue;

stamens equal;

anthers oblong, 2–3.5 mm, dehiscent by terminal pores that open into longitudinal slits;

ovary tomentose.
Berries

yellow, globose, 1–1.5 cm diam., tomentose, without sclerotic granules.
Seeds

yellowish brown, flattened, 1.5–2.5 × 1.5–2 mm, minutely pitted.
2n

= 24.

Solanum mauritianum
Phenology Flowering Mar–Jul.
Habitat Disturbed sites.
Elevation 0–500 m. (0–1600 ft.)
Distribution
from FNA
CA; FL; South America (Brazil, Uruguay) [Introduced also in Asia (India), Africa, Atlantic Islands, Indian Ocean Islands, Pacific Islands, Australia]
[BONAP county map]
Discussion

In Florida, Solanum mauritianum has become naturalized and common only at one site in Pasco County. It also occurs frequently in southern California from Santa Barbara south to San Diego with urban waifs in the Bay Area. It appears to be spreading into relatively undisturbed riparian areas in the San Gabriel Mountains and may become a widespread pest.

(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. 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, S. wallacei
Synonyms S. auriculatum
Name authority Scopoli: Delic. Fl. Faun. Insubr. 3: 16, plate 8. (1788)
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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