Annals of Botany, Vol. 24, No. 96 (October, 1910), pp. 631-651 (25 pages) ...

Dear Helen: Can you identify a tall, upright, single-stemmed plant that has appeared in my garden? It has spikes of large, silky, yellow flowers. S.W. The plant in your photo is common evening ...

A caterpillar of the evening primrose moth (Schinia florida) devouring a flower bud of common evening primrose (Oenothera biennis). These moths exclusively feed on the flowers and fruits of evening ...

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I LOVE plants that change colour after they open, as evening primroses do. Choose carefully, and the days of late summer will be enlivened by large, translucent saucers of yellow and apricot, ...