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Published In: Species Plantarum 1: 319. 1753. (1 May 1753) (Sp. Pl.) Name publication detailView in BotanicusView in Biodiversity Heritage Library
 

Project Name Data (Last Modified On 8/26/2009)
Acceptance : Accepted
 

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2. Yucca L. (soapweed, Spanish bayonet)

Vegetative stems short or reduced and not apparent (forming tall trunks elsewhere), sometimes appearing woody. Leaves leathery at maturity, stiff or lax, lanceolate to linear, sometimes spine-tipped, sometimes with peeling, fibrous margins. Inflorescences short- to long-stalked panicles or racemes. Tepals free. Stamens usually included, the anthers sagittate. Carpels with the ovary superior, the style short, the stigma 3-lobed to nearly entire. Capsules cylindric or bluntly 3-angled, 6-locular (3-locular elsewhere). Thirty-five species, North America, mainly in the Sonoran and Chihuahuan Deserts.

 

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1.Inflorescences panicles, the base of the flowering portion raised above the leaves
Yucca flaccida
1.Inflorescences racemes or with few, short basal branches, the base of flowering portion not raised above the leaves
2.Leaves 1.0B2.5 cm wide, softer-textured, acute but not spine-tipped; tepals rounded to bluntly pointed at the tip; seeds 8B10 mm wide
Yucca arkansana
2.Leaves 0.4B1.2 cm wide, hard and stiff, spine-tipped; tepals sharply pointed at the tip; seeds 10B13 mm wide
Yucca glauca
 
 
 
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