Castilleja lineata

Castilleja lineata, commonly known as marshmeadow paintbrush or linearlobe paintbrush, is an uncommon species that largely grows in the mountains of northern New Mexico, but is also found in small areas of neighboring Colorado and Arizona. It was not scientifically described until 1901 and is little studied.

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Castilleja lineata is a perennial, herbaceous plant that reaches 10–40 centimeters in height at full size. The stems either grow straight upwards (erect) or somewhat outwards before curving to grow upwards (ascending) from a common central point. The stems are usually unbranched and are covered in very fine hairs, sometimes very heavily (pilose or woolly). The leaves of Castilleja lineata are green in color, are not thick or fleshy, and have a smooth edge without teeth. Its leaves often have large lobes, three to seven total, but usually five or less. The surface of the leaves are strongly marked with parallel veins. The leaves are rolled inwards (involute) and will sometimes have wavy margins. Their shape varies from narrow and grass like (linear), a narrow rectangle with rounded corners (narrowly oblong), or like a thin spear head (narrowly lanceolate), and measure 1.3–5 centimeters long. Flowering The bracts are the most noticeable part of the flowers and are pale-yellow to greenish in color. They may also be tinged with yellow-orange or yellow towards their ends while the base of the bracts are more green or yellow-green. The length of the bracts is 20–35 millimeters and they are densely covered with woolly hairs. The overall shape of the bracts varies from a narrow to broad spear head (lanceolate or narrow rectangle with rounded corners (narrowly oblong). Each bract usually has three lobes, but may also sometimes have five or seven, they may grow upwards or spread outwards and split the bracts near or just below the midpoint. The middle lobe is rounded at the end while the ends of the side lobes are more pointed. The overall length of the flowering stem is 5–22 centimeters and its width is 1–4.5 centimeters with many bracts and flowers. The tube of the flower is hidden by the bracts. The surrounding sepals (the calyces) are similarly colored to the bracts and 15–20 millimeters long. The petals are partially fused into a tube that may be straight or slightly curved and is 14–22 millimeters long. Flowering may be in June, July, or August.