Erythronium helenae

Erythronium helenae

Erythronium helenae is a species of the genus of the tooth lilies ( Erythronium ).

Features

The bulbs are 30 to 55 millimeters in size and ovate. Sometimes they form sessile daughter bulbs. The leaves are 7-20 inches long. The leaf blade is broadly lanceolate to ovate and mottled with irregular brown and white stripes. The leaf margin is more or less wavy strong. The shaft is 12 to 30 inches long. The inflorescence is one to dreiblütig.

The flowers are fragrant. The petals are 25 to 40 millimeters long and lanceolate to ovate. They are more or less colored white and bright yellow at their base. By the time they turn pale pink. The inner petals are auriculate at the base. The stamens are 8 to 13 millimeters long. The stamens are less than 0.8 mm wide, linear and more or less slender and yellow. The anthers are yellow. The pens are 5-8 mm long, more or less white and often tilted to one side, what a Zygomorphie bloom caused. The scar is unlobed or has tabs which are shorter than 1 millimeter. The capsules are 2-4 inches long and obovate.

The flowering time is in the spring, from March to April.

The chromosome number is 2n = 24

Occurrence

Erythronium helenae comes in California in the vicinity of Mount Saint Helena. The species grows in dry woods and thickets on serpentine at altitudes from 500 to 1200 meters.

Documents

• Erythronium helenae in the Flora of North America (accessed 31 October 2010 )