An underground layer of water-bearing permeable rock or unconsolidated materials.

Covered with or resembling fine, cobweb-like hairs.

A tree (in botanical Latin); also refers to shaded garden structures.

Tree-like in growth habit or appearance.

Having the size or characteristics of a tree; tree-like in form.

A botanical garden devoted to trees and woody plants.

Directed upward or forward; pointing toward the apex (opposite of retrorse).

A group of phosphate minerals, sometimes found in plant tissues as microscopic crystals.

Lacking petals; describing flowers that do not have petals.

The tip or highest point of a plant structure, such as a leaf, stem, or root.