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Hort 202 Laboratory 3 Key Tutorial

Hort 202 Laboratory 3 Key Tutorial. Key to Sansevieria Key taken from: D. W. Reed. 1978. Sansevieria --Identification and Culture. Louisiana Society of Horticultural Research 14(2):30-77. 1) Plant with evident upright stem, leaves arising along entire

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Hort 202 Laboratory 3 Key Tutorial

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  1. Hort 202 Laboratory 3Key Tutorial Key to Sansevieria Key taken from: D. W. Reed. 1978. Sansevieria--Identification and Culture. Louisiana Society of Horticultural Research 14(2):30-77

  2. 1) Plant with evident upright stem, leaves arising along entire length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .S. powellii 1) Plant without evident upright stem, leaves arising from basal cluster. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(2)

  3.  This plant is without an evident upright stem. It has leaves arising from basal clusters. Go to couplet (2). Basal clusters

  4. 2) Mature leaves cylindrical and channeled only on younger or basal portion of leaves. . . . . . . . . . . . . . . . . . . . .S. cylindrica 2) Mature leaves flattened and expanded, much wider than thick. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(3)

  5.  This plant does not have cylindrical or channeled leaves. Its leaves are flat, expanded, & wide. Go to couplet (3). Flat, expanded, wide leaves

  6. 3) Leaves not variegated or with light and dark green transverse bands on younger growth and becoming obliterated with age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(4) 3) Leaves conspicuously variegated with transverse or linear striations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (7)

  7.  This plant has variegation with linear striations on both younger and older growth. Go to couplet (7). Variegation, linear striations

  8. 7) Plant with basal or rosette type growth, rarely over 6-8” tall, leaves not more than 2-3 times longer than wide. . . . . . . . . .(8) 7) Plant with ascending growth; leaves many times longer than wide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (10)

  9. Less than 6-8” tall  This plant has basal or rosette type growth, is not over 6-8” tall, and its leaves are not more than 2-3 times longer than wide. Go to couplet (8). Note leaf dimensions: 2.5” 3.5” Basal/rosette growth,

  10. 8) Leaves green with yellow linear striations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . S. trifasciata cv. Golden Hahnii 8) Leaves entirely light or dark green. . . . .(9)

  11.  This plant has leaves that are green with yellow linear striations. Its leaves are not entirely light or dark green. The name of this plant is S.trifasciata cv. Golden Hahnii. Yellow linear striations

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