Solanum sisymbrifolium Lam.

Common Name : Sticky nightshade
Family : Solanaceae

HABIT

AN ANNUAL OR PERENNIAL, ERECT, RHIZOMATOUS HERB, 1 M TALL.

STEMS

THE STEM AND BRANCHES ARE VISCID, HAIRY, AND ARMED WITH FLAT, ORANGE-YELLOW SPINES UP TO 15 MM IN LENGTH.

LEAVES

OVATE TO LANCEOLATE LEAVES ARE BORNE ON PETIOLES, 1-6 CM LONG AND ARE PUBESCENT BOTH ABOVE AND BELOW WITH STELLATE AND GLANDULAR HAIRS. THE LEAVES ARE PINNATELY DIVIDED INTO 4-6 COARSE LOBES AND MAY BE UP TO 40 CM LONG AND 25 CM WIDE.

FLOWERS

INFLORESCENCE INTERNODAL, UNBRANCHED RACEME COMPOSED OF 1-10 PERFECT OR STAMINATE FLOWERS. THE 5-PARTED FLOWERS ARE WHITE, LIGHT BLUE, OR MAUVE, ABOUT 3 CM IN DIAMETER, AND ARE SUBTENDED BY A HAIRY CALYX.

FRUITS

RED, SUCCULENT, GLOBULAR BERRIES ARE 12 – 20 MM IN DIAMETER.

SEEDS

 PALE YELLOW, 2.9 – 3.2 MM LONG.