Susan Elizabeth Verhoek-Williams

American botanist (born 1942).

Abbreviations: Verh.-Will.
Occupations: taxonomist, science writer, explorer, university teacher, curator, botanist
Citizenships: United States
Dates: 1942-01-01T00:00:00Z
Direct attributions: 6 plants, 0 fungi
Authorship mentions: 11 plants, 0 fungi

6 plants attributed, 5 plants contributed to11 plants:

Manfreda longiflora (Longflower Tuberose) (Rose) Verh.-Will. 1975
plant species in the asparagaceae family
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Polianthes howardii Verh.-Will. 1976
plant species in the asparagaceae family
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Manfreda sileri (Siler's Tuberose) Verh.-Will. 1978
plant species in the asparagaceae family
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Manfreda longibracteata Verh.-Will. 1978
plant species in the asparagaceae family
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Manfreda hauniensis (J.B.Petersen) Verh.-Will. 1978
plant species in the asparagaceae family
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Manfreda chamelensis E.J.Lott & Verh.-Will. 1991
plant species in the asparagaceae family
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Agave sileri (Verh.-Will.) Thiede & Eggli 1999
plant species in the asparagaceae family
Agave sileri (synonym Manfreda sileri) is a species of Agave known only from coastal areas in the States of Texas and Tamaulipas. It grows on open locations with clay soil, at elevations below 100 m (330 feet). Siler's tuberose is a common name. Agave sileri is a perennial herb spreading by means of globose underground rhizomes. It produces rosettes of waxy, light green leaves mottled with dark green or brown spots. The flowering stalk can reach a height of up to 220 cm (7.2 feet), with as many as 80 greenish-yellow flowers bearing large yellow anthers.
Agave howardii (Verh.-Will.) Thiede & Eggli 1999
plant species in the asparagaceae family
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Agave longibracteata (Verh.-Will.) Thiede & Eggli 1999
plant species in the asparagaceae family
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Agave chamelensis (E.J.Lott & Verh.-Will.) Thiede & Eggli 1999
plant species in the asparagaceae family
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Manfreda pubescens (Regel & Ortgies) Verh.-Will. ex Espejo & López-Ferr. 1993
plant species in the asparagaceae family
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