Marshallia grandiflora Beadle & F.E. Boynton. Common name: Blue Ridge Barbara's-buttons, Large-flowered Barbara's-buttons. Phenology: Jun-Aug. Habitat: Habitat uncertain: "borders of swamp", "damp soil", "dry soil". Distribution: Endemic to sw. NC; perhaps extinct.
Origin/Endemic status: Endemic
Taxonomy Comments: See Knapp, Poindexter, & Weakley (2020) for detailed information. The name Marshallia grandiflora was previously applied more broadly to include river-scour populations west of the Blue Ridge now placed in Marshallia pulchra.
Synonymy ⓘ: = K4, Knapp, Poindexter, & Weakley (2020); < Marshallia grandiflora Beadle & F.E.Boynton — FNA21, RAB, S, SE1, W, Beadle & Boynton (1901), Channell (1957), Watson & Estes (1990), Weakley & Poindexter (2012)
Links to other floras: < Marshallia grandiflora - FNA21
Wetland Indicator Status:
- Eastern Mountains and Piedmont: FAC (taxonomic split from wetland indicator species)
Heliophily ⓘ: 9
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Horticultural Information
Intro:
Stems: Stems erect, unbranched, striate, becoming non-striate towards base, sparsely to densely short pubescent.
Leaves: Leaves basal and cauline, alternate; basal petiolate, upper sessile or reduce; blades 3-nerved, elliptical, broadly oblanceolate, or spatulate, 18.7-24.5 cm long x 2.4-3.0 cm wide; apex acute to obtuse.
Inforescence:
Flowers:
Fruits: Cypselae 4.0-5.5 mm long, 0.4-0.6 mm wide, hairy on the ribs at maturity.
Comments:
Height: 59-89 cm
plant sale text:
bloom table text:
description:
stems: Stems erect, unbranched, striate, becoming non-striate towards base, sparsely to densely short pubescent.
leaves: Leaves basal and cauline, alternate; basal petiolate, upper sessile or reduce; blades 3-nerved, elliptical, broadly oblanceolate, or spatulate, 18.7-24.5 cm long x 2.4-3.0 cm wide; apex acute to obtuse.
inflorescence:
flowers:
fruits: Cypselae 4.0-5.5 mm long, 0.4-0.6 mm wide, hairy on the ribs at maturity.
comments:
cultural notes:
germination code:
native range: southeastern United States