tuberculate

The western form has more rigid leaves and more tuberculate and spiny cones.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

Specimens from the Peace River, collected on August 10, 1952, include females that were mostly spent and tuberculate males.

From Geographic Variation in the North American Cyprinid Fish, Hybopsis gracilis by Frank B. Cross

Thallus 3–6´´ long, 1–3´´ wide, with membranous margins; receptacle small, hemispherical, 1–4-fruited, the peduncle about 1´ high, sparingly scaly at base, barbulate at the apex; involucre short, crenulate; spores tuberculate.

From The Manual of the Botany of the Northern United States Including the District East of the Mississippi and North of North Carolina and Tennessee by Asa Gray

It is somewhat viscid when moist, and the margin is very thin and strongly striate and tuberculate, i. e., the ridges between the marginal furrows are tuberculate.

From Studies of American Fungi. Mushrooms, Edible, Poisonous, etc. by George Francis Atkinson

In these the rough tuberculate epispore splits on one side, and its internal coat elongates itself and protrudes as a tube filled with protoplasm and oil globules, terminating in an ordinary sporangium.

From Fungi: Their Nature and Uses by M. C. (Mordecai Cubitt) Cooke