Lophophora (Lophophora)
Description
Lophophora is a genus of spineless, button-like cacti native to Texas from Presidio county (Big Bend National Park) south right along the Rio Grande river to Starr County, Texas. Its range continues south through Northeast and north central Mexico to Quer-taro in central Mexico.[citation needed] The species are extremely slow growing, sometimes taking up to thirty years to reach flowering age (at the size of about a golf ball, excluding the root) in the wild. Cultivated specimens grow considerably faster, usually taking between three and ten years to reach from seedling to mature flowering adult. The slow rate of reproduction and over-harvesting by collectors render the species under threat in the wild.
Taxonomic tree
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Domain: Eukarya
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Kingdom: Plantae
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Phylum: Magnoliophyta
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Class: Magnoliopsida
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Order: Caryophyllales
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Family: Cactaceae
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Genus: Lophophora
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