How does the perennial Roman chamomile (*Chamaemelum nobile*) botanically contrast with German chamomile?
Answer
Roman chamomile is a perennial, creeping herb
The two primary species of chamomile, German and Roman, differ significantly in their growth habits and life cycles. German chamomile (*Matricaria recutita*) is described as an annual plant, meaning it completes its life cycle within one growing season. Conversely, Roman chamomile (*Chamaemelum nobile*) is characterized as a perennial, which implies it lives for more than two years, and it grows as a creeping herb, suggesting a low-growing, spreading habit across the ground. While both share calming properties, these fundamental botanical distinctions mean they must be treated as separate entities regarding safety and efficacy, as their essential oil profiles differ.
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