Intro: Erect perennial of moist to dryish forests and forest margins, most common on mafic and calcareous substrates.

Stems: Stems solitary, slender, unbranched, typically with only 3 leaf-bearing nodes and hairy in lines between nodes; leaks milky sap when bruised.

Leaves: Leaves opposite above and below and in a whorl of 4 at the middle node, petiolate, oval or lance-shaped, to 5 in. long, thin-textured, sparingly hairy on veins beneath.

Inforescence:

Flowers: Flowers in a small, domed terminal umbel and often several upper axillary umbels; pale pink to greenish (rarely white), about 1/2 in. long, consisting of 5 spreading or reflexed corolla lobes and a central crown--composed of 5 2-parted appendages ("hood" and "horn")--surrounding a complex structure of fused anthers and style.

Fruits: Fruit a smooth, narrow, erect follicle containing tufted seeds.

Comments:

Height: 8-20 in.

plant sale text:

bloom table text:

description: Erect perennial of moist to dryish forests and forest margins, most common on mafic and calcareous substrates.

stems: Stems solitary, slender, unbranched, typically with only 3 leaf-bearing nodes and hairy in lines between nodes; leaks milky sap when bruised.

leaves: Leaves opposite above and below and in a whorl of 4 at the middle node, petiolate, oval or lance-shaped, to 5 in. long, thin-textured, sparingly hairy on veins beneath.

inflorescence:

flowers: Flowers in a small, domed terminal umbel and often several upper axillary umbels; pale pink to greenish (rarely white), about 1/2 in. long, consisting of 5 spreading or reflexed corolla lobes and a central crown--composed of 5 2-parted appendages ("hood" and "horn")--surrounding a complex structure of fused anthers and style.

fruits: Fruit a smooth, narrow, erect follicle containing tufted seeds.

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