Oblanceolate

Oblanceolate describes a leaf or other structure that is lance-shaped (tapering to a point) but wider at the apex (tip) than the base (stem attachment). This inverted lanceolate form is broadest towards the distal end, narrowing gradually towards the petiole (leaf stalk). The term is often used in botanical descriptions to accurately characterize leaf shapes, differentiating them from more common lanceolate forms. The leaf's length compared to its width is a key consideration when determining oblanceolate characteristics, with the broadest point of the leaf located above the midpoint.

Oblanceolate meaning with examples

• The botanist meticulously examined the unknown plant's leaves, noting their oblanceolate shape, wider near the tip and tapering toward the stem. He sketched the leaves carefully, emphasizing the pronounced point and gradual narrowing, key features of oblanceolate morphology. Understanding this form helped him identify the plant's genus, demonstrating the importance of detailed observation in botanical classification. He realized that the plants adaptation meant to be highly reflective of the sun's energy.
• Detailed illustrations in the field guide clearly depict the oblanceolate leaves of the 'Silphium laciniatum,' commonly known as compass plant, so named for the alignment of its leaves. These leaves are broader near the top and taper down, helping to distinguish it from other similar species. Identifying this leaf form confirms the plant’s characteristics of oblanceolate leaves. This unique feature, which is a characteristic of plant family, helps in quick identification.
• The herbarium specimen was carefully pressed, but still showed oblanceolate characteristics of its leaves, indicating it was a good example for analysis. Even under close observation, the shape was easy to identify because it was broader near the tip. The preserved leaves retained the characteristic tapering towards the base and, confirming it was oblanceolate. This leaf shape is critical for species identification in these plant families.
• In the habitat, the botanist found a distinct plant with oblanceolate leaves. This was important because it helped him determine the plant's exposure to sunlight. The leaves' broader top would help with absorbing sunlight, which he considered as he studied the adaptation of the specimen. He was able to determine that this plant was a very successful example in this location.