Plants solitary, globose, depressed apically, dull dark green, to 9 cm (3.5 in) high and 10 cm (3.9 in) in diameter. Roots carrotlike. Tubercles somewhat flaccid, round, with distinct grooves, to 2 cm (0.8 in) long, axils with white wool at first, later naked, glands present. Central spine one, heavy, needlelike, stiff, straight, pointing downward, yellow, becoming gray with age, with dark tip, 1.5-2 cm (0.6-0.8 in) long. Radial spines 11-12, needle-like, stiff, straight, dirty white with dark tips, 0.8-1.1 cm (0.3-0.4 in) long. Flowers funnelform, glossy bright yellow, to 5.5 cm (2.2 in) in diameter. Fruits elongated ovate, green with whitish base, to 2.5 cm (1 in) long, 1.2-1.4 cm (0.5-0.6 in) in diameter. Distribution: Palmillas, Tamaulipas, Mexico.
Plants usually solitary, globose, blue-green, with woolly stem tips, 6-8 cm (2.4-3.1 in) in diameter. Tubercles prominent, to 15 mm (0.6 in) long, axils woolly, each with one large red gland. Central spines 2-4, whitish gray, erect, somewhat curved toward the tips. Radial spines 7-12, gray, diverging, to 15 mm (0.6 in) long. Flowers yellow. Distribution: Durango, Mexico.
Was this article helpful?
You Might Just End Up Spending More Time In Planning Your Greenhouse Than Your Home Don’t Blame Us If Your Wife Gets Mad. Don't Be A Conventional Greenhouse Dreamer! Come Out Of The Mould, Build Your Own And Let Your Greenhouse Give A Better Yield Than Any Other In Town! Discover How You Can Start Your Own Greenhouse With Healthier Plants… Anytime Of The Year!