Hypericum cumulicola

Common Names:
highlands scrub hypericum, highlands scrub St. John's-wort, scrub Hypericum
(Small) P. Adams
Growth Habit:
CPC Number:
Profile Contributors:
Dorothy M. Brazis
Fully Sponsored

Reference Links

ITIS - Tropicos - USDA Plants - Fish & WildLife

Participating Institutions

The following Participating Institutions are custodians for this species in the CPC National Collection:
Bok Tower Gardens

The conservation of Hypericum cumulicola is fully sponsored.
Dorothy M. Brazis contributed to this Plant Profile.


As a member of the genus Hypericum, this plant may contain hypericin, which is a promising chemical compound that may help protect animals from viral diseases. (Duke 1989) This species was listed as federally endangered in 1987, and the main causes of its decline include habitat loss, habitat fragmentation, and fire suppression.

This small, short-lived perennial herb can grow from 20 to 70 cm tall, and has 3 - 17 wiry, round stems that arise from a woody, fibrous root system. Its needle-like leaves are opposite, entire, and simple. Blooming from July to November, flowers occur in cymes are composed of five yellow petals that are shaped like the blades of a propeller. Mature seeds are pointed, opening into 3 curved, beaked segments, surrounded by 5 persistent sepals. This Hypericum is a prolific reproducer, and by the end of the season there can be as many as 1,600 reproductive structures (fruits, flowers, or buds) on an individual plant.

This species closest Florida relative is H. gentianoides. The two species are morphologically very similar, but can be distinguished by their branching form. H. gentianoides branches repeatedly above the base, while H. cumulicola branches only at the base. (USFWS 1999)

Distribution & Occurrence


Conservation, Ecology & Research