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Hypericum gentianoides (Linnaeus) Britton, Sterns, & Poggenburg. Section: Brathys. Common name: Pineweed, Orange-grass, Orangeweed. Phenology: Jul-Oct. Habitat: Fields, rock outcrops, woodland borders, eroding areas, pond margins, pine flatwoods. Distribution: ME and ON west to MN, south to s. FL and TX.

Origin/Endemic status: Native

Synonymy ⓘ: = Ar, C, Can, F, Fl2, FNA6, G, Il, K4, Mo2, NcTx, NE, NS, NY, Pa, POWO, RAB, Tat, Tn, Tx, Va, W, WH3, WV, Adams (1973), Robson (2006); = Sarothra gentianoides L. — S, S13, (basionym)

Links to other floras: = Hypericum gentianoides - FNA6

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FACU
  • Eastern Mountains and Piedmont: UPL
  • Great Plains: FACU
  • Midwest: FACU
  • Northcentral & Northeast: FACU

Heliophily ⓘ: 8

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image of plant© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷
image of plant© Joey Shaw source | Original Image ⭷
image of plant© Scott Ward | Original Image ⭷

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Horticultural Information

NCBG trait

Intro: Erect to ascending, bushy annual found on rock outcrops and in fields, woodland borders, eroding areas, pond margins and pine flatwoods.

Stems: Stems wiry, wing-angled, with many thread-like branches; main stem reddish brown and upper branches green.

Leaves: Leaves opposite, sessile, scale-like and tiny, closely pressed to stem or slightly angled outward.

Inforescence:

Flowers: Flowers mostly sessile at branch tips and along branches at leaf nodes, yellow and less than 1/4 in. wide when open. Each flower consisting of 5 lance-linear, blunt petals, which open only in sunlight; 5 slightly shorter, narrower sepals; and an erect cluster of stamens and style in the center.

Fruits: Fruit a reddish-purple, slender-conical capsule.

Comments:

Height: 6-20 in.

plant sale text:

bloom table text:

description: Erect to ascending, bushy annual found on rock outcrops and in fields, woodland borders, eroding areas, pond margins and pine flatwoods.

stems: Stems wiry, wing-angled, with many thread-like branches; main stem reddish brown and upper branches green.

leaves: Leaves opposite, sessile, scale-like and tiny, closely pressed to stem or slightly angled outward.

inflorescence:

flowers: Flowers mostly sessile at branch tips and along branches at leaf nodes, yellow and less than 1/4 in. wide when open. Each flower consisting of 5 lance-linear, blunt petals, which open only in sunlight; 5 slightly shorter, narrower sepals; and an erect cluster of stamens and style in the center.

fruits: Fruit a reddish-purple, slender-conical capsule.

comments:

cultural notes:

germination code:

native range: eastern North America