Taenidia integerrima (Linnaeus) Drude. Common name: Yellow Pimpernel. Phenology: Apr-Jun; May-Jul. Habitat: In rocky, dry to dry-mesic forests and woodlands over mafic or calcareous rock, such as diabase, amphibolite, calcareous siltstone, calcareous shale, or limestone. Distribution: QC, ON, MN, and SD south to c. GA, AL, MS, LA, and TX.
Origin/Endemic status: Native
Synonymy ⓘ: = Ar, C, Can, F, G, GrPl, Il, K4, MC, Mi, Mo2, NE, NY, Ok, Pa, RAB, S, S13, Tat, Tn, Tx, Va, W, WV, Cronquist (1982), Plunkett et al (2018a) in Kadereit & Bittrich (2018). Basionym: Smyrnium integerrimum L. 1753
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Heliophily ⓘ: 6
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© Bruce A. Sorrie | Original Image ⭷
© Gary P. Fleming
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© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
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© Shaun Pogacnik, some rights reserved (CC BY-NC), uploaded by Shaun Pogacnik source CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Scott Ward | Original Image ⭷
© Richard & Teresa Ware CC-BY-NC, permission granted to NCBG | Original Image ⭷
© Scott Ward, some rights reserved (CC BY), uploaded by Scott Ward source CC-BY | Original Image ⭷
© Alex Graeff, some rights reserved (CC BY-NC-ND), uploaded by Alex Graeff source CC-BY-NC-ND, permission granted to NCBG | Original Image ⭷
© Erik Danielson source | Original Image ⭷
© Bruce A. Sorrie | Original Image ⭷Feedback
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Horticultural Information
Intro: Erect perennial of rocky, dry to dry-moist forests and woodlands over mafic or calcareous rock, such as diabase, amphibolite, calcareous siltstone, calcareous shale or limestone.
Stems: Stems slender, sparingly branched, dull green to reddish brown with whitish coating, smooth.
Leaves: Leaves alternate, petioles with sheathing bases, 1-2 times ternately divided, the ultimate leaflets oval to oblong and about 1 in. long and smooth.
Inforescence:
Flowers: Flowers in composite umbels 4-7 in. wide at ends of some branches, the 12-15 stalked umbellets widely spaced and containing about 12 flowers. Flowers yellow, tiny (less than 1/4 in. wide), with 5 petals.
Fruits: Fruit a joined pair of oval, ridged seeds with one flattened side (pentagonal in cross-section).
Comments: Has a light, celery-like odor. The fruits of the very similar T. montana have prominent wings.
Height: 1-3 ft.
plant sale text:
bloom table text:
description: Erect perennial of rocky, dry to dry-moist forests and woodlands over mafic or calcareous rock, such as diabase, amphibolite, calcareous siltstone, calcareous shale or limestone.
stems: Stems slender, sparingly branched, dull green to reddish brown with whitish coating, smooth.
leaves: Leaves alternate, petioles with sheathing bases, 1-2 times ternately divided, the ultimate leaflets oval to oblong and about 1 in. long and smooth.
inflorescence:
flowers: Flowers in composite umbels 4-7 in. wide at ends of some branches, the 12-15 stalked umbellets widely spaced and containing about 12 flowers. Flowers yellow, tiny (less than 1/4 in. wide), with 5 petals.
fruits: Fruit a joined pair of oval, ridged seeds with one flattened side (pentagonal in cross-section).
comments: Has a light, celery-like odor. The fruits of the very similar T. montana have prominent wings.
cultural notes:
germination code: 2
native range: eastern & central North America
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