apetalous

Vascular plants found in Mt. Assiniboine park include American alpine smelowskia Smelowskia calycina, Raynold's sedge Carex raynoldsii, Cusick's Indian paintbrush Castilleja cusickii, stalked-pod locoweed Oxytropis podocarpa, sub-alpine grassland Saussurea nuda and apetalous campion Silene uralensis attenuata.

Canadian Rocky Mountain Parks, Canada 2008

= -- Deficiency of the entire corolla occurs in conjunction with similar reductions in other organs, or as an isolated phenomenon in the many apetalous varieties of plants recorded in books.

Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Maxwell T. Masters

The highest apetalous plants contain camphors and oils; the highest of the monocotyledons contain a mucilage and oils; and the highest dicotyledons contain oils and special acids.

Scientific American Supplement, No. 623, December 10, 1887 Various

No plants containing saponin have been found among apetalous groups.

Scientific American Supplement, No. 623, December 10, 1887 Various

I desire now to call attention to chemical groups under the apetalous plants having simplicity of floral elements.

Scientific American Supplement, No. 623, December 10, 1887 Various

Thus, certain species of _Helianthemum_ are apetalous in Lapland.

Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Maxwell T. Masters

The following references apply some to apetalous and others to dimorphic flowers, but it must be remembered that the latter plants are not necessarily wanting in petals or stamens, &c., though the functional activity of the parts may be impaired:

Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Maxwell T. Masters

The starting-point of the class, however, and the position within it of apetalous families with frequently unisexual flowers, have provoked much discussion.

Encyclopaedia Britannica, 11th Edition, Volume 2, Part 1, Slice 1 Various

The flowers in this case were apetalous and imperfect.

Vegetable Teratology An Account of the Principal Deviations from the Usual Construction of Plants Maxwell T. Masters

All these plants are grouped under three main divisions: apetalous, monocotyledonous, and dicotyledonous; and these main divisions are further subdivided.

Scientific American Supplement, No. 623, December 10, 1887 Various