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Plagiobothrys pringlei - Pringle's popcornflower

Scientific Family
Boraginaceae
Synonyms
Echidiocarya arizonica, Plagiobothrys collinus var. pringlei
Other common names
popcornflower
Plant type
Forbs and Subshrubs
Origin
Native
Lifecycle
Annual
Similar species
Plagiobothrys collinus var. fulvescens
Height
To nearly 10 inches
Riparian
No

Annual with rough, hairy stems growing flat on the ground or curving upward. Basal rosette-like leaves and stem leaves are green, narrow and hairy. Tiny 5-petaled white flowers resembling popped popcorn grow along the entire length of the flower stalk.

Stems with rough, stiff, hairs; basal, lower leaves green, opposite not in rosettes; flowers white, all along the stems; fruit stalk about as long as a nutlet, nutlets usually united in pairs, not flattened; long striped nutlets unique among Borages.

Habitat

Found on arid plains, sandy mesas and hillsides.

Plant Community
Desert Scrub
Grasslands
Interior Chaparral
Pinyon Juniper Woodlands
Low elevation
1000
High elevation
4500

Flower Characteristics

Flower stalk is coiled in bud but elongates with age. Tiny, bell-like flowers grow in the leaf axils (between the leaf and stem) throughout the entire length of the stem even in the basal leaf axils. Flowers have narrow 3/4 inch leaf-like bracts below.

Flower color
White
Flower shape
Regular
Tubular
Yes
First bloom month
February
Last bloom month
May
Flower clusters
Elongated

Leaf and Stem Characteristics

Leaves and stems are covered with stiff hairs. Leaf blades are linear, 3/4 to 1 inch long with the tip ending in a short sharp point or having a rounded shape. Lower basal leaves often have an opposite attachment, upper leaves are alternate on the stem.

Leaf type
Simple
Leaf color
Green
Leaf shape
Narrow
Leaf margin
Smooth
Leaf attachment
Alternate & Opposite
Leaves clasp
No
Leaf hairs
Leaves & stems
Spines
No

Fruit and Seed Characteristics

Fruit is egg-shaped, 1/16 inch long, wrinkled and covered in short, sharp points with folds (ridges) on its front and back. The front ridge lengthens to a form a stalk (stipe) that is as long as the nutlet itself which is unique within the Borage family.

Fruit type
Nutlet

4 nutlets are produced, each having 1 seed. The nutlets do not split open to release the seed when ripe.