Host an Event Volunteer Join Tickets

Support the plant database you love!


Plant Database

Search for native plants by scientific name, common name or family. If you are not sure what you are looking for, try the Combination Search or our Recommended Species lists.

Enter a Plant Name:
Or choose a plant family:
Hypericum gentianoides (Orangegrass)
Cressler, Alan

Hypericum gentianoides

Hypericum gentianoides (L.) Britton, Sterns & Poggenb.

Orangegrass, Pineweed

Clusiaceae (Mangosteen Family)

Synonym(s): Sarothra gentianoides


USDA Native Status: L48 (N), CAN (N)

Small, yellow, nearly sessile flowers on wiry, ascending branches of a bushy plant.

With its tiny flowers and scaly leaves on erect, wiry branches, this annual is unlike most St.-John's-worts. It is typical of sterile, bare, open sites, where its flowers open only in the sun. Its capsules are usually red. The similar Nits-and-lice (H. drummondii) has fewer branches, a broad oval capsule, and larger leaves 1/2-1" (1.5-2.5 cm) long; it occurs from Maryland south to Florida, west to Texas, and north to Iowa, southern Illinois, and West Virginia.


From the Image Gallery

6 photo(s) available in the Image Gallery

Plant Characteristics

Duration: Annual
Habit: Herb
Leaf: Green

Bloom Information

Bloom Color: Yellow
Bloom Time: Jul , Aug , Sep , Oct


USA: AL , AR , CT , DC , DE , FL , GA , IA , IL , IN , KY , LA , MA , MD , ME , MI , MN , MO , MS , NC , NH , NJ , NY , OH , OK , PA , RI , SC , TN , TX , VA , VT , WI , WV
Canada: ON
Native Distribution: Ontario; Nova Scotia and Maine south to Florida, west to Texas, and north to Missouri and Minnesota.
Native Habitat: Open, sandy or rocky areas.

Growing Conditions

Water Use: Low
Light Requirement: Part Shade
CaCO3 Tolerance: Medium


Conspicuous Flowers: yes

National Wetland Indicator Status

This information is derived from the U.S. Army Corps of Engineers National Wetland Plant List, Version 3.1 (Lichvar, R.W. 2013. The National Wetland Plant List: 2013 wetland ratings. Phytoneuron 2013-49: 1-241). Click here for map of regions.

From the National Organizations Directory

According to the species list provided by Affiliate Organizations, this plant is on display at the following locations:

Crosby Arboretum - Picayune, MS

Additional resources

USDA: Find Hypericum gentianoides in USDA Plants
FNA: Find Hypericum gentianoides in the Flora of North America (if available)
Google: Search Google for Hypericum gentianoides


Record Modified: 2014-09-12
Research By: TWC Staff

Go back