Agave obscura.
In the mountainous western part of Veracruz, both north and south of Orizaba volcano, we saw lots of Agave obscura (note that this species is listed under Agave polyacantha in Gentry’s book). It seemed to thrive in very wet areas, but where drainage was good (cliffs, steep slopes, and on old lava flows). Plants were often quite green, but some populations had more of a bluish tinge. Of the attached photos, #001-007 are from Las Magdalenitas, volcanic peaks northwest of Xalapa, Veracruz. I liked the more glaucous plants better, so these predominate in my pictures. Photo # 008 is from Zongolica, farther south and lower in altitude, on a cliff in a rainforest environment, and here the plants were all green and had longer leaves.
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