Plantaginaceae : Plantago rugelii

Plantago rugelii is a perennial herb growing from a short, erect caudex forming a low rosette of leaves with smooth, slender flowering stalks that can reach 35 cm in height. The leaf blades are broadly elliptic to ovate, 5-20 cm long and ½ to 2/3 as wide, narrowed at the base and rounded to pointed at the tip, with 5-9 major veins and entire to finely toothed margins. The petioles are 2-20 cm long, winged, and reddish toward the base. The inflorescence consists of 1-several terminal spikes, 5-20 cm long, sitting atop the smooth peduncle. Each flower is subtended by bracts 1.5-2.3 mm long, the 4 sepals are 2-2.5 mm long and the corolla forms a white to purple tube with 4 short lobes. The fruit is a capsule 6-8 mm long containing 4-10 black seeds. Blackseed plantain blooms from May into October in moist, often shaded woodlands and parklands along the eastern and western borders of South Dakota. This species is very similar to P. major, an introduced weed common in lawns and gardens throughout the world.

Publication Details

Journal
Open PRAIRIE (South Dakota State University)
Published
2025-01-01
Primary Topic
Biological Control of Invasive Species
Type
article
Field-Weighted Citation Impact
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article

Plantaginaceae : Plantago rugelii

Open PRAIRIE (South Dakota State University)
Biological Control of Invasive Species
article

Plantaginaceae : Plantago rugelii

article en

Abstract

Plantago rugelii is a perennial herb growing from a short, erect caudex forming a low rosette of leaves with smooth, slender flowering stalks that can reach 35 cm in height. The leaf blades are broadly elliptic to ovate, 5-20 cm long and ½ to 2/3 as wide, narrowed at the base and rounded to pointed at the tip, with 5-9 major veins and entire to finely toothed margins. The petioles are 2-20 cm long, winged, and reddish toward the base. The inflorescence consists of 1-several terminal spikes, 5-20 cm long, sitting atop the smooth peduncle. Each flower is subtended by bracts 1.5-2.3 mm long, the 4 sepals are 2-2.5 mm long and the corolla forms a white to purple tube with 4 short lobes. The fruit is a capsule 6-8 mm long containing 4-10 black seeds. Blackseed plantain blooms from May into October in moist, often shaded woodlands and parklands along the eastern and western borders of South Dakota. This species is very similar to P. major, an introduced weed common in lawns and gardens throughout the world.

Open PRAIRIE (South Dakota State University)
Life in Land
Openalex Percentile: Top 43%
Biological Control of Invasive Species
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