Cubelium concolor (T.F. Forster) Rafinesque ex Britton & A. Brown. Common name: Eastern Green-violet. Phenology: Cleistogamous flowers: Apr-early May; late May-Jul. Chasmogamous flowers: Late May-Jun; May-Oct. Habitat: Very nutrient-rich and mesic forests, especially over calcareous substrates such as limestone and dolomite, sometimes extending upslope into dry-mesic or even dry forests and woodlands when the soils are very basic. Distribution: VT and s. ON west to MI and KS, south to SC, GA, Panhandle FL, s. AL, ne. MS, and AR.
Origin/Endemic status: Native
Synonymy ⓘ: = K4, S, S13, Ballard () (in prep), Ballard, Kartesz, & Nishino (2023); = Hybanthus concolor (T.F.Forst.) Spreng. – Ar, C, F, Fl2, FNA6, G, GrPl, Il, K1, K3, Mi, NE, NY, Pa, RAB, Tat, Tn, Va, W, WH3, WV, McKinney & Russell (2002)
Links to other floras: = Hybanthus concolor - FNA6
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACU (name change)
- Eastern Mountains and Piedmont: FACU (name change)
- Midwest: FACU (name change)
- Northcentral & Northeast: FACU (name change)
Heliophily ⓘ: 3
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Horticultural Information
Intro: Erect perennial of very nutrient-rich and moist forests, especially over calcareous substrates such as limestone and dolomite.
Stems: Stems solitary or clustered, from a crown of fibrous roots, smooth (may be hairy above).
Leaves: Leaves alternate and present throughout stem, petiolate, elliptic to oval-oblong, 3 1/2-7 in. long, veiny and hairy or smooth.
Inforescence:
Flowers: Flowers in groups of 1-3, dangling on short stalks from axils of mid-stem leaves, green, about 1/4 in. long, consisting of 5 small petals with upturned tips and 5 narrow, arching sepals.
Fruits:
Comments: Closed, self-pollinating flowers also are present.
Height: 1-3 ft.
plant sale text:
bloom table text:
description: Erect perennial of very nutrient-rich and moist forests, especially over calcareous substrates such as limestone and dolomite.
stems: Stems solitary or clustered, from a crown of fibrous roots, smooth (may be hairy above).
leaves: Leaves alternate and present throughout stem, petiolate, elliptic to oval-oblong, 3 1/2-7 in. long, veiny and hairy or smooth.
inflorescence:
flowers: Flowers in groups of 1-3, dangling on short stalks from axils of mid-stem leaves, green, about 1/4 in. long, consisting of 5 small petals with upturned tips and 5 narrow, arching sepals.
fruits:
comments: Closed, self-pollinating flowers also are present.
cultural notes:
germination code:
native range: