Code
Botanical Name
English Common Name
yuan
Yucca angustifolia Pursh
yuan2
Yucca angustissima Engelm. ex Trel.
yuana
Yucca angustissima Engelm. ex Trel. var. avia Reveal
yuana2
Yucca angustissima Engelm. ex Trel. var. angustissima
yuane
Yucca angustissima Engelm. ex Trel. var. elata Engelm.
yuank
Yucca angustissima Engelm. ex Trel. var. kanabensis (McKelvey) Reveal
yuanm
Yucca angustissima Engelm. ex Trel. var. mollis Engelm.
yuant
Yucca angustissima Engelm. ex Trel. var. toftiae (Welsh) Reveal
yuar
Yucca arizonica McKelvey
yuar2
Yucca arkansana Trel.
yuarp
Yucca arkansana Trel. var. paniculata McKelvey
yuba2
Yucca baileyi Woot. & Standl.
yubab
Yucca baccata Torr. var. baccata
yubab2
Yucca baccata Torr. var. brevifolia (Schott ex Torr.) L. Benson & Darrow
yubab3
Yucca baileyi Woot. & Standl. var. baileyi
yubai
Yucca baileyi Woot. & Standl. var. intermedia (McKelvey) Reveal
yubam
Yucca baccata Torr. var. macrocarpa Torr.
yuban
Yucca baileyi Woot. & Standl. var. navajoa (J.M. Webber) J.M. Webber
yubav
Yucca baccata Torr. var. vespertina McKelvey
yubr
Yucca brevifolia Engelm.
yubr2
Yucca brevifolia Schott ex Torr.
yubrb
Yucca brevifolia Engelm. var. brevifolia
yubrh
Yucca brevifolia Engelm. var. herbertii (J.M. Webber) Munz
yubrj
Yucca brevifolia Engelm. var. jaegeriana McKelvey
yuca
Yucca campestris McKelvey
yuca2
Yucca carnerosana auct. non (Trel.) McKelvey
yuca3
Yucca californica Nutt. ex Baker
yuca4
Yucca californica Lemmon
yuco
Yucca constricta Buckl.
yuco2
Yucca confinis McKelvey
yucr
Yucca crassifolia Engelm.
yuel
Yucca elata (Engelm.) Engelm.
yuel2
Yucca elephantipes Regel
yuele
Yucca elata (Engelm.) Engelm. var. elata
yuelu
Yucca elata (Engelm.) Engelm. var. utahensis (McKelvey) Reveal
yuelv
Yucca elata (Engelm.) Engelm. var. verdiensis (McKelvey) Reveal