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).Flora of North America v 26 p 464 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.Verhoek-Williams, Susan Elizabeth. Brittonia 30(2): 168–170, f. 4–6. 1978.Thiede, Joachim, & Urs Eggli. Kakteen und Andere Sukkulenten 50: 111. 1999.
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