Inhabiting the dry scrublands and seasonally dry forests of South America, Castela tweediei var. macrophylla features larger photosynthetic organs compared to the nominate form.
This adaptation allows the thorny shrub to capture light efficiently in dry woodlands. Its growth habit helps it withstand prolonged dry spells in regions like the Gran Chaco.
The structural characteristics of this variety reflect its adaptations to dry woodland environments.
Spring
The ecological contributions of this variety dominate its practical significance in native ecosystems.
The variety epithet "macrophylla" is derived from Greek, meaning "large-leaved." This name highlights its evolutionary shift towards maximizing light capture in the understory of dry South American woodlands.
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