Identifying a Mystery Prison Greenhouse Plant

Identifying a Mystery Plant from a Prison Greenhouse

A prison greenhouse sergeant in Kansas acquired an unusual plant from another facility and needs help identifying it. Initially described as "some kind of fern," the plant has distinctive characteristics that suggest otherwise.

Plant Description

The plant stands about 18 inches tall and 10 inches wide with a miniature tree-like appearance. Its stem has a bark-like texture with downward-angled thorns below each branch. The leaves are linear, very narrow (1/16 inch or less wide), about 1/2 inch long, with smooth margins. They grow in whorled bundles of 12-50 leaves, each bundle approximately 3/4 inch across with a half-round appearance.

The root system consists of tubular, fat root sections resembling airplane plant (spider plant) roots, with longer tuber roots measuring 3-4 inches long and pale-skinned. The "spike balls" (leaf bundles) often have spikes that connect to each other.

Expert Analysis

Horticultural expert Will Creed confirmed the plant is not a fern but couldn't identify it from the description alone. Without a photo, identification is nearly impossible. He recommended two excellent resources for plant identification:

• NeoFlora - Allows searching by common name, description, and plant characteristics: https://www.neoflora.com/search.html
• Interiorscape Plant Photo Gallery - Features 145 common indoor plants with enlargeable photos: https://aggie-horticulture.tamu.edu/interiorscape/

Key identifying features to search for: whorled leaf arrangement, thorny bark-like stems, tubular roots, and miniature tree growth habit. The plant's prison greenhouse origin suggests it's likely a tough, adaptable species.