*Youngia japonica (Linnaeus) A.P. de Candolle. Common name: Asiatic Hawk’s-beard, Youngia. Phenology: Dec-Jun. Habitat: Flowerbeds, suburban woodlands, roadsides, disturbed areas, trail edges, hammocks, rocky woodlands, floodplains. Distribution: Native of se. Asia. Kelley (2021b) reported distribution records in OK. This species has spread rapidly in our region, and is now moving into minimally-disturbed natural areas.
Origin/Endemic status: E. and se. Asia
Synonymy ⓘ: = Bah, K4, Urbatsch, Pruski, & Neubig (2013); = n/a — Pa, Tat; = Youngia japonica (L.) DC. ssp. japonica — FNA19, POWO, not formally treated; < Crepis japonica (L.) Benth. — F, G, RAB, S; < Youngia japonica (L.) DC. — Ar, C, Fl7, FNA19, Il, NcTx, SE1, Tn, Va, WH3; Prenanthes japonica Linnaeus. Basionym: Prenanthes japonica L. 1767
Links to other floras: < Youngia japonica - FNA19; = Youngia japonica ssp. japonica - FNA19
Show parent genus | Show parent in key(s)
Wetland Indicator Status:
- Atlantic and Gulf Coastal Plain: FACU (taxonomic split from wetland indicator species)
- Eastern Mountains and Piedmont: FACU (taxonomic split from wetland indicator species)
- Great Plains: FACU (taxonomic split from wetland indicator species)
- Midwest: FACU (taxonomic split from wetland indicator species)
- Northcentral & Northeast: FACU (taxonomic split from wetland indicator species)
Heliophily ⓘ: 5
Hover over a shape, letter, icon, or arrow on the map for definition or see the legend.















Feedback
See something wrong or missing on about Youngia japonica? Let us know here: (Please include your name and email if at all complicated so we can clarify if needed.) We greatly appreciate feedback, and will include updates from you in our next webapp update, which can take a few months. If a species is not keyed, that's because keying is ongoing. Please don't send us feedback about unkeyed species.
Horticultural Information
Intro: Tap-rooted annual found on trail edges, roadsides, clearings, and other disturbed, open or shaded habitats. Native of southeast Asia,
Stems: Stems 1-several from a basal rosette, may be reddish-purple-tinged, hairy below and smoother above.
Leaves: Leaves mostly basal; petiolate; oblong-lance-shaped; 2-5 in. long; divided into very irregular, quasi-pinnate segments with jagged edges; pale green with reddish-purple tints; densely hairy, the hairs often brownish and crinkled.
Inforescence:
Flowers: Composite flowers (heads) in small branching cluster at stem top, the closed heads fig-shaped; heads bright yellow, about 1/3 in. wide, consisting of 10-20 ray florets with squared-off, 5-toothed tips. A series of narrow, green bracts with fleshy midribs surrounds the cylindric base of each head.
Fruits:
Comments: This species is spreading rapidly in our area, recently moving into minimally disturbed natural areas.
Height: 4-28 in.
plant sale text:
bloom table text:
description: Tap-rooted annual found on trail edges, roadsides, clearings, and other disturbed, open or shaded habitats. Native of southeast Asia,
stems: Stems 1-several from a basal rosette, may be reddish-purple-tinged, hairy below and smoother above.
leaves: Leaves mostly basal; petiolate; oblong-lance-shaped; 2-5 in. long; divided into very irregular, quasi-pinnate segments with jagged edges; pale green with reddish-purple tints; densely hairy, the hairs often brownish and crinkled.
inflorescence:
flowers: Composite flowers (heads) in small branching cluster at stem top, the closed heads fig-shaped; heads bright yellow, about 1/3 in. wide, consisting of 10-20 ray florets with squared-off, 5-toothed tips. A series of narrow, green bracts with fleshy midribs surrounds the cylindric base of each head.
fruits:
comments: This species is spreading rapidly in our area, recently moving into minimally disturbed natural areas.
cultural notes:
germination code:
native range: southeastern Asia
0 unsaved edits on this page.