Hort 202 Laboratory 3 Key Tutorial Key to Sansevieria Key taken from: D. W. Reed. 1978....

Hort 202 Laboratory Hort 202 Laboratory 33

Key TutorialKey Tutorial

Hort 202 Laboratory Hort 202 Laboratory 33

Key TutorialKey TutorialKey to Key to

SansevieriaSansevieria

Key taken from: D. W. Reed. 1978. Key taken from: D. W. Reed. 1978. SansevieriaSansevieria--Identification and Culture. --Identification and Culture. Louisiana Society of Horticultural Louisiana Society of Horticultural ResearchResearch 14(2):30-77 14(2):30-77

Key to Key to SansevieriaSansevieria

Key taken from: D. W. Reed. 1978. Key taken from: D. W. Reed. 1978. SansevieriaSansevieria--Identification and Culture. --Identification and Culture. Louisiana Society of Horticultural Louisiana Society of Horticultural ResearchResearch 14(2):30-77 14(2):30-77

1) Plant with evident upright stem, leaves arising 1) Plant with evident upright stem, leaves arising along entirealong entire

length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .SS. . powelliipowellii

1) Plant without evident upright stem, leaves 1) Plant without evident upright stem, leaves arising from arising from

basal cluster. . . . . . . . . . . . . . . . . . . . . . . . . . . . . basal cluster. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(2). . .(2)

1) Plant with evident upright stem, leaves arising 1) Plant with evident upright stem, leaves arising along entirealong entire

length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . length. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .SS. . powelliipowellii

1) Plant without evident upright stem, leaves 1) Plant without evident upright stem, leaves arising from arising from

basal cluster. . . . . . . . . . . . . . . . . . . . . . . . . . . . . basal cluster. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(2). . .(2)

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

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

Basal clusters

2) Mature leaves cylindrical and channeled only 2) Mature leaves cylindrical and channeled only on younger on younger

or basal portion of leaves. . . . . . . . . . . . . . . . . . . or basal portion of leaves. . . . . . . . . . . . . . . . . . . . .. .SS. cylindrica. cylindrica

2) Mature leaves flattened and expanded, much 2) Mature leaves flattened and expanded, much wider thanwider than

thick. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . thick. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(3). .(3)

2) Mature leaves cylindrical and channeled only 2) Mature leaves cylindrical and channeled only on younger on younger

or basal portion of leaves. . . . . . . . . . . . . . . . . . . or basal portion of leaves. . . . . . . . . . . . . . . . . . . . .. .SS. cylindrica. cylindrica

2) Mature leaves flattened and expanded, much 2) Mature leaves flattened and expanded, much wider thanwider than

thick. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . thick. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(3). .(3)

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

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

Flat, expanded, wide leaves

3) Leaves not variegated or with light and dark 3) Leaves not variegated or with light and dark green transversegreen transverse

bands on younger growth and becoming bands on younger growth and becoming obliterated with obliterated with

age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(4). . . . . . . .(4)

3) Leaves conspicuously variegated with 3) Leaves conspicuously variegated with transverse or lineartransverse or linear

striations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . striations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (7). . . . . . . (7)

3) Leaves not variegated or with light and dark 3) Leaves not variegated or with light and dark green transversegreen transverse

bands on younger growth and becoming bands on younger growth and becoming obliterated with obliterated with

age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . age. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .(4). . . . . . . .(4)

3) Leaves conspicuously variegated with 3) Leaves conspicuously variegated with transverse or lineartransverse or linear

striations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . striations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (7). . . . . . . (7)

This plant has variegation with linear striations This plant has variegation with linear striations on both on both

younger and older growth. younger and older growth. Go to couplet (7).Go to couplet (7).

This plant has variegation with linear striations This plant has variegation with linear striations on both on both

younger and older growth. younger and older growth. Go to couplet (7).Go to couplet (7).

Variegation,linear striations

7) Plant with basal or rosette type growth, rarely 7) Plant with basal or rosette type growth, rarely over 6-8” tall,over 6-8” tall,

leaves not more than 2-3 times longer than leaves not more than 2-3 times longer than wide. . . . . . . . . .(8)wide. . . . . . . . . .(8)

7) Plant with ascending growth; leaves many 7) Plant with ascending growth; leaves many times longer thantimes longer than

wide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . wide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (10). . . . . . . . . (10)

7) Plant with basal or rosette type growth, rarely 7) Plant with basal or rosette type growth, rarely over 6-8” tall,over 6-8” tall,

leaves not more than 2-3 times longer than leaves not more than 2-3 times longer than wide. . . . . . . . . .(8)wide. . . . . . . . . .(8)

7) Plant with ascending growth; leaves many 7) Plant with ascending growth; leaves many times longer thantimes longer than

wide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . wide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . (10). . . . . . . . . (10)

This plant has basal or rosette type growth, is This plant has basal or rosette type growth, is not over 6-8”not over 6-8”

tall, and its leaves are not more than 2-3 times tall, and its leaves are not more than 2-3 times longer thanlonger than

wide. wide. Go to couplet (8).Go to couplet (8).

This plant has basal or rosette type growth, is This plant has basal or rosette type growth, is not over 6-8”not over 6-8”

tall, and its leaves are not more than 2-3 times tall, and its leaves are not more than 2-3 times longer thanlonger than

wide. wide. Go to couplet (8).Go to couplet (8).

Basal/rosette growth,

Less than 6-8” tallNote leaf dimensions:

3.5”

2.5”

8) Leaves green with yellow linear 8) Leaves green with yellow linear striations. . . . . . . . . . . . . striations. . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SS. . trifasciatatrifasciata cv. Golden Hahniicv. Golden Hahnii

8) Leaves entirely light or dark green. . . . .(9)8) Leaves entirely light or dark green. . . . .(9)

8) Leaves green with yellow linear 8) Leaves green with yellow linear striations. . . . . . . . . . . . . striations. . . . . . . . . . . . .

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SS. . trifasciatatrifasciata cv. Golden Hahniicv. Golden Hahnii

8) Leaves entirely light or dark green. . . . .(9)8) Leaves entirely light or dark green. . . . .(9)

This plant has leaves that are green with yellow This plant has leaves that are green with yellow linear linear

striations. Its leaves are not entirely light or striations. Its leaves are not entirely light or dark green.dark green.

The name of this plant is The name of this plant is S.S. trifasciatatrifasciata cv. cv. Golden Hahnii.Golden Hahnii.

This plant has leaves that are green with yellow This plant has leaves that are green with yellow linear linear

striations. Its leaves are not entirely light or striations. Its leaves are not entirely light or dark green.dark green.

The name of this plant is The name of this plant is S.S. trifasciatatrifasciata cv. cv. Golden Hahnii.Golden Hahnii.

Yellow linear striations