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Agalinis setacea (J.F. Gmelin) Rafinesque. Threadleaf Agalinis. Phen: Aug-Oct; Oct-Nov. Hab: Longleaf pine sandhills, Florida scrub, other dry forests and openings. Dist: NY (Long Island) south to ne. FL, c. peninsular FL, and AL.

Origin/Endemic status: Endemic

Synonymy ⓘ: = C, Fl7, FNA17, K1, K3, K4, NY, RAB, S, Tn, Va, W, WH3, Sorrie (2017b) in Weakley et al (2017); < Agalinis obtusifolia Raf. – Fl7; > Agalinis stenophylla Pennell; > Gerardia setacea J.F.Gmel. – F, G, Tat, Pennell (1935); > Gerardia stenophylla (Pennell) Pennell – Pennell (1935)

Links to other floras: = Agalinis setacea - FNA17

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Wetland Indicator Status:

  • Atlantic and Gulf Coastal Plain: FAC (taxonomic split from wetland indicator species)
  • Eastern Mountains and Piedmont: FACU (taxonomic split from wetland indicator species)

Heliophily ⓘ: 9

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image of plant© Will Stuart | Original Image ⭷
image of plant© Gary P. Fleming | Original Image ⭷
image of plant© Jim Fowler | Original Image ⭷
image of plant© Bruce A. Sorrie | Original Image ⭷
image of plant© Radford, Ahles and Bell | Original Image ⭷

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Horticultural Information

NCBG trait

Intro: Erect to ascending, bushy annual found in sandhill woodlands, openings in other dry forests and sandy roadsides.

Stems: Stems slender, weakly angled, profusely bushy-branched, dull green suffused with purple and mostly smooth.

Leaves: Leaves opposite, narrowly linear to needle-like (no more than ¼ in. wide.), to 1 1/2 in. long, smooth.

Inforescence:

Flowers: Flowers long-stalked and in terminal racemes; rose-pink, 1/2-1 in. long, bilaterally symmetric and tubular, opening to 5 erect or spreading, hairy lobes; densely long-hairy within the tube and with 2 yellow streaks and dark pink spots. The shorter, bell-shaped calyx has 5 triangular "teeth."

Fruits: Fruit a many-seeded, round capsule.

Comments:

Height: 6-27 in.

plant sale text:

bloom table text:

description: Erect to ascending, bushy annual found in sandhill woodlands, openings in other dry forests and sandy roadsides.

stems: Stems slender, weakly angled, profusely bushy-branched, dull green suffused with purple and mostly smooth.

leaves: Leaves opposite, narrowly linear to needle-like (no more than ¼ in. wide.), to 1 1/2 in. long, smooth.

inflorescence:

flowers: Flowers long-stalked and in terminal racemes; rose-pink, 1/2-1 in. long, bilaterally symmetric and tubular, opening to 5 erect or spreading, hairy lobes; densely long-hairy within the tube and with 2 yellow streaks and dark pink spots. The shorter, bell-shaped calyx has 5 triangular "teeth."

fruits: Fruit a many-seeded, round capsule.

comments:

cultural notes:

germination code:

native range: southeastern United States

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