Phacelia covillei S. Watson ex A. Gray. Common name: Eastern Buttercup Phacelia. Phenology: Apr; May. Habitat: Rich soils of floodplains, and contiguous terraces and slopes. Distribution: Ranging in three disjunct areas: c. NC and sc. VA (in the drainages of the Cape Fear, Tar, and Roanoke rivers); DC, n. VA, and sc. MD (in the drainage of the Potomac River); and disjunct at scattered locations w. WV, s. OH, sw. IN, and s. MO (in the drainage of the Ohio River and its tributaries, except the MO occurrence) (Sewell & Vincent 2006)
Origin/Endemic status: Endemic
Taxonomy Comments: Closely similar to P. ranunculacea (with which it is sympatric in the lower Ohio River area), but consistently distinguishable based on subtle characters (Sewell & Vincent 2006). Chuang & Constance (1977) felt that P. covillei and P. ranunculacea (sensu stricto) have numerous characteristics that rendered their inclusion in Phacelia uncomfortable (also see discussion in Constance 1949 and Gillett 1968), but Sewell & Vincent (2006) countered this idea. See Nemophila aphylla for suggestions on distinguishing these three superficially similar species.
Synonymy ⓘ: = K4, Mo3, Va, Sewell & Vincent (2006); < Phacelia ranunculacea (Nutt.) Constance — C, F, G, Il, RAB, Constance (1949). Basionym: Phacelia covillei S.Watson ex A.Gray 1890
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Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACW
- Eastern Mountains and Piedmont: FACW
- Midwest: FACW
Heliophily ⓘ: 1
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© Bruce A. Sorrie | Original Image ⭷
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© Scott Ward | Original Image ⭷
© Scott Ward | Original Image ⭷
© Bruce A. Sorrie | Original Image ⭷
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Horticultural Information
Intro: Erect-spreading annual/biennial of rich soils of floodplains and of nearby terraces and slopes.
Stems: Stems weak, simple or branched from the base, lower parts rough-hairy.
Leaves: Leaves alternate, petiolate, oblong-oval in outline, 1-3 in. long, deeply pinnately divided into 1-6 segments that may be further lobed; blade and petiole are rough-hairy.
Inforescence:
Flowers: Flowers in loose, branching, and sometimes weakly coiled, axillary clusters of 1-6; blue; less than 1/4 in. wide; tubular, with 5 tiny, ascending corolla lobes.
Fruits:
Comments:
Height: 4-8 in.
plant sale text:
bloom table text:
description: Erect-spreading annual/biennial of rich soils of floodplains and of nearby terraces and slopes.
stems: Stems weak, simple or branched from the base, lower parts rough-hairy.
leaves: Leaves alternate, petiolate, oblong-oval in outline, 1-3 in. long, deeply pinnately divided into 1-6 segments that may be further lobed; blade and petiole are rough-hairy.
inflorescence:
flowers: Flowers in loose, branching, and sometimes weakly coiled, axillary clusters of 1-6; blue; less than 1/4 in. wide; tubular, with 5 tiny, ascending corolla lobes.
fruits:
comments:
cultural notes:
germination code:
native range:
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