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Orobanchaceae
Seymeria

not marked as a favorite taxon Seymeria cassioides (J.F. Gmelin) Blake. Common name: Senna Seymeria, Yaupon Blacksenna. Phenology: Aug-Oct. Habitat: Dry to moist pinelands, wet pine savannas, longleaf pine sandhills, other dry woodlands, an obligate hemiparasite on Pinus spp. Distribution: Se. VA south to c. peninsular FL, west to LA; disjunct in nc. AL and se. TN (Chester, Wofford, & Kral 1997; Tennessee Flora Committee 2015); n. Bahamas.

Glossary (beta!)

Origin/Endemic status: Native

Synonymy ⓘ: = Ar, Bah, C, F, Fl7, FNA17, G, GW2, K4, RAB, Tx, Va, WH3, Pennell (1935); = Afzelia cassioides J.F.Gmel. — S. Basionym: Afzelia cassioides J.F.Gmel. 1791

Links to other floras: = Seymeria cassioides - FNA17

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FAC
  • Eastern Mountains and Piedmont: FAC
  • Great Plains: FAC

Heliophily ⓘ: 8

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image #1 of Seymeria cassioides© Gary P. Fleming | Original Image ⭷
image #2 of Seymeria cassioides© Gary P. Fleming | Original Image ⭷
image #3 of Seymeria cassioides© Scott Ward | Original Image ⭷
image #4 of Seymeria cassioides© Aidan Campos source | Original Image ⭷
image #5 of Seymeria cassioides© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image #6 of Seymeria cassioides© Bruce A. Sorrie | Original Image ⭷
image #7 of Seymeria cassioides© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
image #8 of Seymeria cassioides© Alan M. Cressler | Original Image ⭷
image #9 of Seymeria cassioides© Aidan Campos source | Original Image ⭷

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Horticultural Information

NCBG trait

Intro: Erect annual of dry to moist pinelands, wet pine savannas, sandhills and other dry woodlands.

Stems: Stems bushy-branched and smooth or finely hairy.

Leaves: Leaves opposite, short-petiolate to sessile, to 3/4 in. long, pinnately divided into many narrow needle-like segments, pale green and often red-tinged.

Inforescence:

Flowers: Flowers in leafy racemes terminating branches, pale yellow, about â…“ in. wide, bilaterally symmetric, consisting of a short corolla tube with 5 spreading, unequal lobes (usually with a red triangle at the base of each of the 3 lower lobes, and splotchy red on the other 2 lobes), a bell-shaped-tubular calyx with 5 lobes and 4 protruding stamens. Buds and outside of petals lack hairs.

Fruits: Fruit an urn- or pear-shaped capsule.

Comments: Parasitic on the roots of pine trees.

Height: 2-3 ft.

plant sale text:

bloom table text:

description: Erect annual of dry to moist pinelands, wet pine savannas, sandhills and other dry woodlands.

stems: Stems bushy-branched and smooth or finely hairy.

leaves: Leaves opposite, short-petiolate to sessile, to 3/4 in. long, pinnately divided into many narrow needle-like segments, pale green and often red-tinged.

inflorescence:

flowers: Flowers in leafy racemes terminating branches, pale yellow, about â…“ in. wide, bilaterally symmetric, consisting of a short corolla tube with 5 spreading, unequal lobes (usually with a red triangle at the base of each of the 3 lower lobes, and splotchy red on the other 2 lobes), a bell-shaped-tubular calyx with 5 lobes and 4 protruding stamens. Buds and outside of petals lack hairs.

fruits: Fruit an urn- or pear-shaped capsule.

comments: Parasitic on the roots of pine trees.

cultural notes:

germination code:

native range:



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