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Lamiaceae
Trichostema

not marked as a favorite taxon Trichostema setaceum Houttuyn. Common name: Narrowleaf Blue Curls. Phenology: Aug-Nov. Habitat: Thin soils around rock outcrops, especially granite flatrocks, dry sandy soils of the Coastal Plain. Distribution: CT west to OH, south to FL and TX, primarily on the Coastal Plain.

Glossary (beta!)

Section: Trichostema.

Origin/Endemic status: Native

Synonymy ⓘ: = C, F, Fl6, Il, K4, Mo3, NE, NY, Pa, RAB, Tat, Tn, Tx, Va, W, WH3, Lewis (1945), McClelland & Weakley (2019) in Weakley et al (2019a); = Trichostema dichotomum L. var. lineare (Walter) Pursh — G; = Trichostema lineare Walter — S. Basionym: Trichostema setaceum Houtt. 1778

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Heliophily ⓘ: 9

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image #1 of Trichostema setaceum© Scott Ward | Original Image ⭷
image #2 of Trichostema setaceum© Gary P. Fleming | Original Image ⭷
image #3 of Trichostema setaceum© Scott Ward | Original Image ⭷
image #4 of Trichostema setaceum© Scott Ward | Original Image ⭷
image #5 of Trichostema setaceum© Floyd A. Griffith | Original Image ⭷
image #6 of Trichostema setaceum© Alan M. Cressler | Original Image ⭷
image #9 of Trichostema setaceum© Floyd A. Griffith | Original Image ⭷

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Horticultural Information

NCBG trait

Intro: Erect annual of thin soils around rock outcrops, especially granite flatrocks, and dry sandy soils of the Coastal Plain.

Stems: Stems 4-angled, branched, minutely hairy with scattered long hairs, not glandular.

Leaves: Leaves opposite, short-petiolate to sessile, linear and bluntly pointed, to 2 in. long, smooth.

Inforescence:

Flowers: Flowers in a terminal panicle, with 2 leaf-like bracts at the base of each 1- to 3-flowered stalk; dark blue to purple; about 1/3 in. long; consisting of 5 spreading lobes, the 4 upward-pointing ones similar in length to the downward-pointing one, which has a blue-purple-spotted white patch, and 4 long stamens curling above.

Fruits:

Comments:

Height: 4-12 in.

plant sale text:

bloom table text:

description: Erect annual of thin soils around rock outcrops, especially granite flatrocks, and dry sandy soils of the Coastal Plain.

stems: Stems 4-angled, branched, minutely hairy with scattered long hairs, not glandular.

leaves: Leaves opposite, short-petiolate to sessile, linear and bluntly pointed, to 2 in. long, smooth.

inflorescence:

flowers: Flowers in a terminal panicle, with 2 leaf-like bracts at the base of each 1- to 3-flowered stalk; dark blue to purple; about 1/3 in. long; consisting of 5 spreading lobes, the 4 upward-pointing ones similar in length to the downward-pointing one, which has a blue-purple-spotted white patch, and 4 long stamens curling above.

fruits:

comments:

cultural notes:

germination code:

native range:



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