Blepharidachne Bigelovii (s. Wats.) Hack. - Bigelow's Desertgrass

Overview

Blepharidachne bigelovii (S. Wats.) Hack. is a species of perennial grass belonging to the Poaceae family. It is native to North America and is commonly found in riparian habitats, ranging from southwestern United States to northern Mexico. This grass is often referred to by its common name Bigelow's eyelashgrass.

Description

Blepharidachne bigelovii is a low-growing perennial grass that can grow up to 40 centimeters in height. It has a fibrous root system and typically forms loose tufts. The leaves are narrow and linear, measuring up to 14 centimeters long and 1 millimeter wide. The leaf blades are flat, and the ligule is membranous and rounded. The inflorescence is a contracted panicle that is sparsely branched and measures up to 25 centimeters long.

The spikelets are borne singly or in pairs and are up to 6 millimeters long. The glumes are unequal, with the lower one shorter than the upper one. The lemma and palea are both membranous and more or less equal in length. The lemma is pubescent and has long cilia at the apex, giving the plant its eyelash-like appearance. The plant usually flowers from May to October.

Uses

Blepharidachne bigelovii has limited economic significance, but it is used to stabilize riverbanks, reduce soil erosion and provide forage for livestock. In addition, it is grown as an ornamental plant in rock gardens and prairie grassland landscapes.

Although not commonly used in herbal medicine, some indigenous populations have used Bigelow's eyelashgrass to treat digestive and respiratory problems.

Appearance

Blepharidachne bigelovii is a low-growing perennial grass that forms loose tufts up to 40 centimeters high. It has narrow, linear leaves and a contracted panicle inflorescence that measures up to 25 centimeters long. The spikelets are up to 6 millimeters long and have unequal glumes. The lemma and palea are membranous, and the lemma is pubescent with long cilia at the apex, giving the plant its distinctive eyelash-like appearance.

The plant's fibrous root system makes it an important species in stabilizing riverbanks and as a forage source for livestock. It is also grown as an ornamental plant in some areas.

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Light Requirements

Blepharidachne bigelovii is a light-loving plant that requires full sun to grow. It thrives in areas that receive direct sunlight for most of the day.

Temperature Requirements

This plant grows best in warm temperatures between 60°F and 85°F. It can tolerate more extreme temperatures but may not grow as well.

Soil Requirements

Blepharidachne bigelovii prefers well-draining soils that are sandy or rocky. It can tolerate dry soils but prefers occasional watering. The soil pH should be slightly alkaline, around 7.0 to 8.5.

Other Growth Conditions

In addition to its light, temperature, and soil requirements, Blepharidachne bigelovii also requires occasional pruning to maintain its shape and promote healthy growth. It is a drought-tolerant plant, making it ideal for dry climates and xeriscaping.

Cultivation

When cultivating Blepharidachne bigelovii, it is vital to ensure that it is planted in well-draining soil. This plant thrives in sandy and well-aerated soils that provide adequate drainage to prevent waterlogging. Additionally, it prefers areas with full sun exposure but can tolerate partial shade.

Watering Needs

Blepharidachne bigelovii requires moderate watering. It is necessary to water the plant deeply and infrequently, rather than frequent light watering. This method encourages healthy root growth and helps the plant to develop drought tolerance. Additionally, it is best to water in the morning to allow the plant ample time to dry off before nightfall, as moist foliage during the night could encourage disease proliferation.

Fertilization

Adding a well-balanced fertilizer, with equal amounts of nitrogen, phosphorus, and potassium, can help the growth of Blepharidachne bigelovii. It is best to apply the fertilizer during the growing season. Avoid fertilizing during the inactivity period.

Pruning

Pruning is essential, particularly for keeping the grass tidy and to promote healthy growth. It is best to prune Blepharidachne bigelovii just before it enters its growing season in early spring. Focus on removing the dead foliage and cuttings that have been damaged by the winter frost. Trim till about an inch from the plant's base. Avoid cutting too closely, as it may damage the growing tips, which could hinder new growth. Additionally, regular pruning of the plant's foliage can help prevent the occurrence of fungal diseases.

Propagation of Blepharidachne bigelovii

Blepharidachne bigelovii, commonly known as Bigelow's eyelash grass, is a beautiful perennial plant native to western North America. It is a small grass that thrives in rocky areas, sandy soils, and open woodlands. Propagation of this plant can be done using different methods, including:

Seed Propagation

The most common method of propagating Blepharidachne bigelovii is through seeds. This plant typically produces seeds that can be harvested when the grass begins to dry out and turn brown. The seeds should be collected and stored in a dry and cool place until you're ready to plant them. When you're ready, sow the seeds directly into the ground at a depth of approximately one-fourth of an inch, and keep the soil moist until the seedlings emerge.

Division Propagation

Another way to propagate Blepharidachne bigelovii is through division. This method is usually done in the late spring or early fall when the plant is actively growing. To divide the plant, dig around the root clump with a shovel and gently separate the plant into two or more sections. Replant the sections immediately into well-draining soil and keep the soil moist until they establish.

Transplant Propagation

You can also propagate Blepharidachne bigelovii through transplanting. This method is best done in the fall or early winter when the plant is dormant. To do this, dig up the entire plant, including the roots, and move it to a new location. Be sure to plant it in well-draining soil and keep the soil moist until it establishes.

No matter which method you choose, Blepharidachne bigelovii is easy to propagate and can make a great addition to any garden or natural landscape.

Disease and Pest Management for Blepharidachne bigelovii

Blepharidachne bigelovii is a native grass species found in many regions of the western United States, primarily in desert and semi-arid regions. The plant is generally resistant to pests and diseases; however, it can be affected by several common diseases and pests. Below are some of the most common diseases and pests that might affect the plant and suggested management strategies.

Common Diseases

Fungal Leaf Spots: Fungal leaf spots are a common disease that can affect the leaves of Blepharidachne bigelovii, causing lesions on the surface of the leaf. The disease can spread rapidly during periods of high humidity or wet weather. Management of fungal leaf spots can be achieved by removing affected plant materials and applying fungicides. It is also important to maintain good air circulation around the plant to prevent the disease from spreading.

Powdery Mildew: Powdery mildew is a fungal disease that causes a white, powdery coating on the leaves and stems of the plant. Infected plants can suffer reduced vigor and may produce distorted and stunted growth. Management of powdery mildew can be achieved by removing infected plant materials and applying fungicides. It is also important to maintain good air circulation around the plant to prevent the disease from spreading.

Root Rot: Root rot is a disease caused by the water mold Phytophthora cinnamomi, which attacks the roots of the plant. Symptoms of root rot include a general decline in plant vigor, yellowing leaves, and wilting. Management of root rot can be achieved by improving soil drainage and avoiding overwatering. Infected plants can also be treated with fungicides.

Common Pests

Grasshoppers: Grasshoppers are a common pest that can cause significant damage to Blepharidachne bigelovii, especially during periods of drought. Infected plants may exhibit defoliation and reduced vigor. Management of grasshoppers can be achieved by using insecticides or physical barriers such as row covers.

Mites: Mites are tiny pests that can infest the leaves and stems of the plant, causing yellowing, stippling, and distortion of the leaves. Management of mites can be achieved by removing infected plant materials and applying insecticides.

Cutworms: Cutworms are caterpillars that can feed on the roots and stems of the plant, causing wilting and death. Management of cutworms can be achieved by using insecticides or physical barriers such as row covers.

In conclusion, proper disease and pest management is crucial for the health and vigor of Blepharidachne bigelovii. A combination of cultural practices such as ensuring good soil drainage, maintaining adequate air circulation, and proper watering in addition to chemical management can help prevent and control diseases and pests in these plants.