Great St. Johnswort

Description

Branched pernennial herb 7-15dm; leaves lanceolate to elliptic, 4-10cm, acute or obtuse, sessile and sometimes clasping; flowers few, chiefly solitary at the ends of the branches, 4-6cm wide; stamens very numerous, united at base into 5 sets; styles 5, united below but not persistent; stigmas capitate; fruit ovoid, 15-30mm, 5-locular.