Asparagaceae
Weak-leaf yucca
Yucca flaccida
- Family
- Asparagaceae
- Genus
- Yucca
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Common names
By language (4)
- Arabic
- يكة رخوة
- arz
- يكه رخوه
- Chinese
- 软叶丝兰, 丝兰, 洋波萝, 百骑大栗树
- English
- Weak-leaf yucca, Adam's needle, Spanish bayonet
Synonyms
- Yucca arkansana subsp. freemanii (Shinners) Hochstätter
- Yucca arkansana subsp. louisianensis (Trel.) Hochstätter
- Yucca concava Haw.
- Yucca exigua Baker
- Yucca filamentosa f. concava (Haw.) Voss
- Yucca filamentosa f. flaccida (Haw.) Voss
- Yucca filamentosa f. glaucescens (Haw.) Voss
- Yucca filamentosa f. orchioides (Carrière) Voss
- Yucca filamentosa f. puberula (Haw.) Voss
- Yucca filamentosa subsp. concava (Haw.) Hochstätter
- Yucca filamentosa subsp. smalliana (Fernald) Hochstätter
- Yucca filamentosa var. concava (Haw.) Baker
- Yucca filamentosa var. flaccida (Haw.) Engelm.
- Yucca filamentosa var. glaucescens (Haw.) Baker
- Yucca filamentosa var. grandiflora Baker
- Yucca filamentosa var. orchioides (Carrière) Baker
- Yucca filamentosa var. puberula (Haw.) Baker
- Yucca filamentosa var. smalliana (Fernald) H.E.Ahles
- Yucca flaccida f. exigua (Baker) Trel.
- Yucca flaccida f. orchioides (Carrière) Trel.
- Yucca flaccida var. exigua (Baker) Trel.
- Yucca flaccida var. glaucescens (Haw.) Trel.
- Yucca flaccida var. grandiflora (Baker) Trel.
- Yucca flaccida var. integra Trel.
- Yucca flaccida var. lineata Trel.
- Yucca flaccida var. major (Baker) Rehder
- Yucca flaccida var. orchioides (Carrière) Trel.
- Yucca flaccida var. smalliana (Fernald) D.B.Ward
- Yucca freemanii Shinners
- Yucca glaucescens Haw.
- Yucca louisianensis Trel.
- Yucca orchioides Carrière
- Yucca orchioides var. major Baker
- Yucca puberula Haw.
- Yucca smalliana Fernald
Flowers
- In flower
- May to July (from 20 flowering iNaturalist observations worldwide)
Characteristics
- Growth habit
- Forb/herb, Shrub, Subshrub
- Lifespan
- Perennial
- In the US and Canada
- Canada: native, Lower 48 states: native
Photos
FlowerPhoto: Amanda Fisher, CC BY 4.0, from iNaturalist 
FlowerPhoto: John P Friel, CC BY 4.0, from iNaturalist 
FlowerPhoto: Reuven Martin, CC0, from iNaturalist 
FlowerPhoto: Isaac Krone, CC BY 4.0, from iNaturalist 
Photo: William Avery, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Rebou at German Wikipedia, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Turner Brockman, CC BY-SA 4.0, from iNaturalist 
Photo: Rebou at German Wikipedia, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Will McFarland, CC BY 4.0, from iNaturalist 
Photo: Rebou at German Wikipedia, CC BY-SA 3.0, from Wikimedia Commons 
Photo: Turner Brockman, CC BY-SA 4.0, from iNaturalist 
Photo: Rebou at German Wikipedia, CC BY-SA 3.0, from Wikimedia Commons
More in Yucca
- Spineless yuccaYucca giganteaAsparagaceae
- Joshua treeYucca brevifoliaAsparagaceae
- Adam's needleYucca filamentosaAsparagaceae
- Aloe yuccaYucca aloifoliaAsparagaceae
- Moundlily yuccaYucca gloriosaAsparagaceae
- Soapweed yuccaYucca glaucaAsparagaceae
- Banana yuccaYucca baccataAsparagaceae
- Mojave yuccaYucca schidigeraAsparagaceae
- Yucca rostrataAsparagaceae
- Soaptree yuccaYucca elataAsparagaceae
- Eve's needleYucca faxonianaAsparagaceae
- Schott's yuccaYucca × schottiiAsparagaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.